Showing posts with label sms. Show all posts
Showing posts with label sms. Show all posts

What is VoIP

Voice over Internet Protocol (VoIP) is the family of technologies that allow IP networks to be used for voice applications, such as telephony, voice instant messaging, and teleconferencing. VoIP entails solutions at almost every layer of an IP network–from specialized voice applications (like Skype) all the way down to low-level quality measures that keep those applications running smoothly.

Unless you’ve been sleeping under a very big rock for the last year, you’ve certainly heard the phrase “Voice over IP” uttered. Perhaps you’ve seen those hilarious Vonage commercials that feature painful and embarrassing accidents caught on tape, promising to let you dump your local phone company in order save big on your phone bill. You may also have seen the Cisco telephones that are curiously inserted in prime-time shows like 24.

What is all the hubbub about, anyway? Why, VoIP, of course! VoIP, the fabulous secret ingredient in Vonage, Skype, Cisco CallManager, and a host of other revolutionary technology products you may have already encountered on TV, in the news, or in person. But what makes these products so revolutionary? What is it about VoIP that is such a big deal?

Voice over Internet Protocol is a family of technologies that enable voice communications using IP networks like the internet. Inventive developers and entrepreneurs have created an industry around VoIP technology in its many forms: desktop applications, telephone services, and corporate phone systems. VoIP is a core technology that drives everything from voice-chat software loaded on a desktop PC to Mac full-blown IP-based telecommunications networks in large corporations. To the Wall Street speculator, VoIP is a single technology investment with many revenue streams. To the enterprise network engineer, it’s a way to simplify the corporate network and improve the telephony experience for users of the network. To the home user, it’s a really cool way to save money on the old phone bill.

What is Internet Telephony?

The question “What is Internet Telephony?” has answers that prove that the face of communications as we know it is changing. Today, the internet is not only a pathway for data transmissions. It is now also possible to make telephone calls over the internet, a technology which makes paying long-distance charges optional instead of mandatory.

So exactly what is internet telephony? Also called Voice over Internet Protocol (VOIP), it is the technology that gives the ability to take an analog voice signal and translate it to a digital signal. That digital signal is then sent from one computer across the internet to the receiving computer, where it is reconverted to an analog signal that the receiver hears as the caller’s voice.

Or, if only the originating caller has VOIP, they can still make a call using VOIP. The provider will route the call across the internet to the ‘node’ (local phone switch) nearest the receiver’s location. Usually the caller has to pay a small fee for this service. By using the internet instead of a long-distance company’s telephone network, the caller avoids paying any long-distance fees.

There are, however, variations to the answer of the question about what is internet telephony. Depending on what the customer wants or needs, their level of comfort with technology and their other telephony needs, they have a choice as to what kind of internet telephony service they select.

So when we consider the question of what is internet telephony, we must start with the basic VOIP technology and then look at the packages in which it is offered to the customer.

There are VOIP providers who provide both the internet (usually, broadband internet) service, local phone service with all the calling features the local phone company offers, plus the software and hardware needed to make calls. They usually charge equipment fees and monthly service fees.

Then there are those who provide only the VOIP service over your existing broadband connection, and equipment is optional. But if you have a PC with speakers, a sound card, a microphone and an internet connection, you can even purchase or download software that will allow you to set up your own VOIP calls, free of any monthly or long-distance charges.

88% of business users back VoIP technology

Nearly nine out of ten corporate users of voice over internet protocol (VoIP) applications are happy with the technology but some businesses are missing out on the benefits it can offer, according to a new report.

Research carried out by Data Integration in conjunction with Extreme Networks found that VoIP telephony systems have around 60 per cent market penetration among big businesses, with 88 per cent of users giving the technology positive feedback, reports vnu.net.

Another 27.2 per cent of businesses intend to implement VoIP communication systems within the next three years, the survey found. However, less than a third of those questioned were currently running IP video over their networks.

According to Extreme Networks’ regional director for the UK and Ireland, this low uptake reflects a “lack of understanding” about the potential of video communication for businesses.

“This [uptake] could be down to the false start caused by early and expensive video solutions, or the lack of understanding of its future benefits,” he said. Benefits of VoIP and video conferencing include reduced environmental impact from less travel and lower telecommunications costs.

The survey questioned UK firms with over 500 employees.

Top VoIP Phone System Features

Before you can make the decision about what you need from a phone system and what features should go on your checklist, you need to be sure you know all about the surrounding parameters. You need to know about the network you are connecting to, the size and expandability of the system you want and what the mission critical business application you need from a phone may be. This includes subtle decisions like how much disruption to operations and training your organization can tolerate in the transition.

There are three basic kinds of phone system. The first is what is called a keyless system or a KSU-less system. These are very lightweight phone systems that are for organizations with fewer than ten employees that also have very basic phone requirements. The advantage of these systems is that they are very inexpensive and very easy to set up and run. They are portable and can be moved easily if you relocate. Typically you get very little support and maintenance from your service provider in a keyless system. In addition, features like preventing users from picking up a line in the middle of another call are often impossible to implement.

Next largest is what is called a key system. These use a key system unit (KSU) that is a central control unit that provides features and functions for your phone system that aren’t available on ordinary phones such as extension management and locking users off from lines that are in use. These are essentially closed, ‘black-box’ units that provide 80% of the functions of a basic PBX system for a lower cost. They are typically used in businesses with from 5 to 40 or 50 employees that have only basic business telephony needs.

Finally are PBX systems – these are the most common kind of business phone system and they are the most flexible. With PBX systems that are designed fro as few as 5 users and as many as several thousand users in multiple locations. You can choose to have the PBX system on your business premises or you can have it hosted at a service provider who then performs upgrades and maintenance for you.

Then you have to look at the features of the phone system – these are different than the features of a particular phone itself. They are the features that provide the added business value which is the reason you turn to a phone system in the first place. It may be that you business needs clear, easy-to-set up conference calling, or call tracking that can be tied in to a client billing system, or the ability to tie employees’ cell phones into the overall phone system, or any of over a hundred other complex features that can be important in business.

Beyond the basic decision of what the phone system should do is also the decision about how to connect the phone system and if you have the required infrastructure or networking in place to support the phone system you want. You may find that you have to budget a network upgrade or a broadband supplier upgrade. And that may change your budget priorities.

But it is easy to forget the basics when you start looking at advanced features. Before you let yourself get seduced by ‘find-me-follow-me’ and click-to-call, you might want to check that your basic business-critical functions are covered. For example, there are many VoIP phone systems that have advanced features but do not offer paging or intercom features.

The other non-negotiable issue is call quality. Fortunately there are a few basic issues to make sure of in terms of call quality and if they are dealt with then VoIP will often offer better call quality than any older phone technology. The primary issue is bandwidth. You need about 128kbps of bandwidth per active call line in your phone system. You also want to evaluate your internal network to look at priority of traffic and latency to make sure that packets get routed internally fast enough to maintain call quality. A good VoIP service provider can help with analysis and guidelines to make sure your system can keep up and some service providers will offer real-time monitoring to make sure your phone system can keep up.

The last issue is around hosted versus on-premise systems. This comes down mostly to a business decision. Do you need to maintain control and core access to management and features of your system in house? Or do you want to install and forget and not think about your system? In the latter case you should look seriously at hosted solutions and in the former at on-premise solutions.



Key Questions to ask yourself before deciding on a phone system.

What is the size of my business in terms of number of employees using the phone now?
And in two years?

What kind of internal computer and network systems do I have? Can they handle VoIP?
Do I need to install something new or perform and upgrade?

What are the core features I need from a phone system – no matter what? The features that I cannot leave out for the good of my business?

The answers to these questions need to be your foremost guide. In terms of size you need to be able to figure out how many extensions (actual phones) you need AND you need to know how many outside lines you need. Typically this is about a third of the number of phones but if your business involves a lot of calling for sales or service reasons, you may need more. In terms of your network you do NOT want to install a phone system and then discover that to make it work effectively you need to spend as much again on upgrading your network. And in terms of features you do not want to compromise on the features you need just to get something fancy which may or may not fit into your day-to-day operations.

Michigan VoIP

Starting at $14.99 for local VOIP Michigan provider phone service. Residential VOIP with local and unlimited long distance from $19.99 a month. Business VOIP Michigan provider from $29.99 with unlimited local plus a 2nd voice/fax line with MyPhoneCompany phone service. VOIP carriers carry many free features with your Michigan VOIP provider phone companies.
Facts And Tips:
Both Michigan DSL and cable modem services provide sufficient broadband Internet access bandwidth to support this VOIP phone service. We do recommend cable over DSL because it provides a slightly greater bandwidth.

You can add an additional phone number with a different area code to your VOIP Michigan provider. This is called a “Virtual Phone Number”. This is a great tool if you have a business and you want your business to have a local presence in more than 1 area code.

Your physical location does not matter when determining your “local or regional area code”. You can choose any available area code. What matters is what area code your VOIP Michigan provider phone is setup to use.

How to make calls?
Local - Just pick up the telephone connected to the VOIP Michigan provider phone service and call the number you are trying to reach.
Long Distance - Just pick up the telephone connected to the VOIP Michigan provider phone service and call the number you are trying to reach.
International Calls - Just pick up the telephone connected to the VOIP Michigan provider phone service and call the number you are trying to reach. To dial international you need to dial 011 + country code + city code + phone number.

You can use VOIP Michigan provider phone service anywhere in the world, as long as you have a high speed internet connection. Just take your adapter with you.

Installation VOIP Michigan Provider? You may need a router for an open port. Think of it as a splitter. Plug the adapter into your network using a standard ethernet cable (included).
Plug in the power supply.
Plug your telephone into the adapter.

* Enhanced 911 (E911) Service Now Available You may have read in the newspapers about the huge discussions taking place about 911 services not being available on VOIP Michigan provider phone service. This has presented a problem for many people who just assume that 911 service is available when they have an emergency, but that has not necessarily been the case. Packet8 and MyPhoneCompany offer Michigan VOIP enhanced 911 service option. The FCC has mandated that broadband phone vendors make 911 service available to customers in the near future.

What Is VoIP And How Does VoIP Work

VoIP will allow users to user their broadband connection to make phone calls over the Internet. The widespread use of VoIP has caused a revolution in the phone industry. With the VoIP service giving users the chance to make phone calls over the internet it is easy to see why this has rocked the telecoms industry.

VoIP at present is becoming the most cost effective way to make long distance telephone calls. Before VoIP telephone service providers had a strong hold on lucrative and 99% of the time over priced long distance services.

Due to the introduction of Voip the long distance calling market has began to open to up to competition. The main reason for this is that most Internet users will begin implementing VoIP. The main reason being that VoIP is the most cost effective way to make long distance telephone calls.

VoIP Development Process

Over the last 10 year VoIP has been slowly developing. In the early days computer users were able to talk to one another through their computers. You were only able to do this if you had a voice enabled computer with good Internet connection and you would need to have a software program installed on your computer.

The main advantage to this was that it allowed user to be able to contact anyone from around the world for free aslong as they had the same setup as you.

The disadvantages to this system was that sound quality was never great, broadband was not being widely used and the user you were trying to contact would have to be online.

Today’s VoIP has made these problems a thing of the past.

The two things that were required to make VoIP technology appeal to the wide spread market have been accomplished.

Broadband is now a widly used internet service. This allows users to have a stable internet connection that can always be on.

Secondly the VoIP industry has been able to develop a simple and inexpenisve way of integrating the IP network (aka Internet) with a traditional telephone system.

What this means is that VoIP users are able to use their own telephone to call anyone else in the world who has the traditonal telephone connection.

Traditional telecom companies such as Qwest, AT&T and Bell have developed their own type of VoIP technology. This has given consumers a huge number of choices. Now anybody anywhere with a boradband internet connection is able to call anyone anywhere in the world who has a ordinary telephone connection.

Why VoIP Will Save You Money

The major advantage of VoIP is the low cost, with no significant decrease in voice quality.

1st, a VoIP subscriber doesn’t require a traditional phone line. Instead, you are assigned a phone number by your VoIP provider.

Prices for these calls can be as low as $9 per month. 2nd, virtually all VoIP subscribers will buy a “bundle” of services that includes unlimited incoming calls and unlimited long distance calls to anyone in a defined geographic area. As an example, VoIP unlimited calling plans to anyone in the US or even Canada will only cost around $20 per month.

Third, virtually all VoIP service providers offer free bundled features that virtually all traditional telephone corporations charge for. These include free voicemail, call forwarding, caller ID, call waiting, call waiting ID, three way calling, speed dialing.

VoIP provides better flexibility and portability

An additional important benefit is the flexibility and portability of VoIP phone service. With VoIP your individual telephone number is programmed into the converter that acts as a bridge between your internet connection and your regular telephone.

This has many important benefits. As already mentioned you don’t want an actual land line. Instead your telephone number is assigned to your converter (not to your geographic land line). So you are able to take your converter with you anywhere in the globe, plug it into any available broadband connection, and immediately you can employ your regular number to produce and receive calls.

This flexibility also lets you select a number in an area code where virtually all of your long distance calls originate. For instance, if many of your friends, family, business associates or even customers are calling from a specific city that traditionally involved an extended distance call for them, you may pick a number in that area code and immediately turn all their calls to you into local (free) calls for them.

The benefits of VoIP are many, and the savings can be incredibly important. So it’s no wonder that VoIP has turned into the hottest telecom technology of the decade. Informed consumers and businesses around the globe are adopting this technology at a phenomenal rate.

How Do I Compare Voip Providers?

It’s actually quite easy to compare VoIP providers because the technology is so new that the features that each provider offers differ quite a bit. Just like any service, you want to be sure that you get the best deal, and a program that will fit your needs and desires. Luckily, comparing VoIP providers will be quite simple and you’ll quickly be able to select the provider that is best suited to you.

The first thing you’ll want to do when you want to compare VoIP providers is find out which ones offer services in your area. You may be able to eliminate a couple providers just by looking at their areas of service. Once you eliminate the providers that just won’t work out, you’ll have to look at features and price.

One of the biggest differences between VoIP providers is the features that they can offer. Many have very easy to use routers that allow you to use a regular analog signal and digital signal when it’s suitable. Some VoIP providers only allow calls to other VoIP users, and others allow you to call anyone, anywhere, anytime.

If you make a lot of long distance calls you’ll really want to pay attention to the plans and the provider that you go with. Some VoIP providers don’t distinguish between local and long distance calls, so you basically get all your calls one month for just a service fee. Other VoIP service providers don’t allow you to make long distance calls, or they charge exorbitant fees for them. So, the amount of long distance phone calls you make may be the deciding factor in your choice for a VoIP provider.

Do a lot of research, just like you would when you are looking into any service. If you know whom you are dealing with it’s a lot easier to make an educated decision. When you determine exactly what you need then it’s just a matter of matching your needs with what is offered! Good luck, VoIP is definitely the wave of the future and it will only get easier and more advanced!

Software and Hardware Requirements for VoIP

Voice over Internet telephony has changed the way we communicate. The innovative, flexible and scalable solutions have engineered a revolution of sorts in the present day world. The concept of virtual area codes can be mentioned in this context. VoIP users can opt for this service and select an area that is distinctly different from where they live. They can then enjoy facilities such as unlimited long distance calls to friends and family members living in that area code. This way, they are able to save money while connecting at different levels with the people who matter. This is another area wherein the VoIP solutions have scored over the traditional phone services.

Businesses can also make the most of this high-end technology and use it to their advantage. They can, for instance, think about enhancing their scope and areas of operation, by floating local numbers in potential markets. It is quite evident that they would be getting more leads due to the low costs of local calls. When the number to be called is a local one, more people from target market segments are expected to call in.

The point is that the VoIP market is more than ready for the best of products and services. The only thing is that certain conditions need to be met for the successful implementation of this innovative technology. For instance, a computer with a high speed Internet access is a must-have. The computer should be updated with audio and video codes. This ensures that the persons using the VoIP products and services are not disappointed with the quality of the audio as well as graphics. Another pre-requisite is that the digital video compression format should also be present in the computer that is being used.

Moreover, another important requirement is the telephone adapter, which is often delivered by the voice over IP service providers, as an integral part of VoIP packages. As a matter of fact, this VoIP hardware is indispensable for converting the household phone into one that can be used for making Internet enabled calls. Most important, the hardware and software of VoIP that are needed for the successful running of IP solutions have to be implemented properly through a proper procedure of software installation and hardware activation.

Quite a few service providers are currently present in the market which can help end users to get initiated. As a matter of fact, due to the many choices that are available, it often becomes difficult for potential users to zero in on particular service providers. In this context, a VoIP requirements list becomes indispensable. It is preferable that potential users should go for VoIP wholesalers or resellers that have established themselves well in this domain. The quality of services also becomes important in this context.

It is quite natural that potential users would want to get the most for the money that they spend. So, it is quite evident that they would check out the features and costs of the VoIP solutions and services on offer. They would then be able to match the same with their requirements and select solutions that best satisfy their needs. Certain parameters that need special attention include the financial stability of the company, the technical support that the company offers, and last but most important, the overall voice quality.

New VoIP Quality Monitoring Diagnostic Platform Cuts ISP Call Centre Queues

Internet service providers (ISPs) can now empower their voice over Internet protocol (VoIP) users to diagnose and accurately process VoIP faults for the first time.

Vocalite, the new diagnostic platform from Epitiro, the Internet performance experts, enables Internet telephony users to diagnose problems with their VoIP service even before contacting their provider. The results of the diagnostic test are automatically forwarded to the service provider which can begin to resolve any problems.

Vocalite is initiated via a web browser on either instruction from a service provider’s contact centre or by the end-user. A thorough analysis of the connection is completed and the summary of the test is displayed for the user. The test results are automatically sent through to the Internet provider.

Vocalite gives Customer Service Representatives (CSRs) at the ISP’s contact centre access to an extensive list of test results including Call Setup time, Dial Tone Delay and importantly Voice Quality. Visual pass and fail indicators allow non-technical CSRs to either assure the customer of adequate service quality or acknowledge the presence of a fault. This reduces the need for expensive second line support staff.

“Long contact centre queues frustrate customers and increase the likelihood of them looking for an alternative ISP. Vocalite gives the service provider a head start in fixing the fault and empowers their customers to diagnose the problem for themselves,” said Gavin Johns, Managing Director of Epitiro.

“Our products offer service providers the intelligence they need to gain and retain customers by monitoring and benchmarking their network performance. Vocalite measures the call quality across a provider’s network from an end-user’s perspective. This enables providers to keep a close eye on their networks and fix any potential service affecting problems before they reach the end-user.”

Vonage

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‡$300 savings claim based on 3/07 survey of competing land line service providers. For complete information click here.
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VoIP Expert

Observer’s VoIP Expert, available in Observer Expert and Observer Suite, helps to manage and quickly troubleshoot VoIP across your network. Whether you are interested in the big picture or in a specific conversation, Observer offers real-time statistics, Expert VoIP analysis, and reports for all levels of VoIP traffic.

Understanding network and VoIP performance is the key to accurate troubleshooting. Observer provides visibility into the network, application, and VoIP traffic to quickly resolve any issue. The VoIP Expert provides summary views to easily understand the overall health of the VoIP network. Over 70 VoIP-specific metrics, like call quality, can be tracked on an aggregate or per-call basis. In troubleshooting, there are over 50 Expert events for immediate problem identification. Once an issue has been identified, drill-down on specific conversations for an in-depth view.

 

VoIP Expert Analysis Features

  • Convenient at-a-glance summaries
    • VoIP Traffic Summary
    • Call Summary
    • Voice Quality Scoring
    • Precedence (QoS)
  • Detailed views with in-depth Call Detail Records
    • Addresses
    • Status (Open, closed, fail)
    • Number of packets, packet bytes, packet loss
    • Start time, initial setup duration, duration
    • Current jitter, maximum jitter
    • MOS, R-factor
    • QoS for each call
    • Number of packets that arrive out of order
    • Detailed analysis for packet loss and delay
    • Gap and burst measurements

  • Long-term trending can now be performed on Call Details Records (New)

 

Quickly Solve Problems with over 50 VoIP Experts
Observer offers over 50 event-based and threshold-based VoIP Experts to immediately flag problems for faster problem resolution. Examples include:

   • Alarms for unacceptable jitter level
   • Lost packets
   • Alterations in the QoS stream

 

 

Share VoIP Reports With Others
Through a web browser, engineers can generate and view a variety of reports on VoIP performance statistics and call quality scoring. These reports can be easily shared across the company and scheduled to be automatically e-mailed to management.

Manage VoIP Audio Quality
Observer displays the individual Mean Opinion Score (MOS) and R-factor for every call and as an average for all calls. Place alarms on this score to proactively manage overall VoIP quality.

Learn more about call scoring:

Factors that measure call scoring within Observer can be customized depending upon the network’s specific VoIP equipment and overall network characteristics. For example, VoIP calls made on the factory floor may be scored differently than a call made within a small, quiet office.

Quality score impairment factors include:

    • Loudness rating
    • Talker Echo Loudness Rating
    • Circuit noise
    • Floor noise    
    • Coding and decoding delay

 

Monitor Quality of Service (QoS)
Observer’s VoIP Expert reports QoS levels by call, packet, and protocol. This VoIP analysis also shows percentage of VoIP utilization as compared to the rest of network traffic allowing you to plan network upgrades.

QoS standards recognized include:

  • Default: RFC 1349, 1195, 1123, 791
  • OSPF V2: RFC 1248, 1247
  • DSCP: RFC 2474

VoIP Expert includes call ID and stream information including:

  • Number of packets
  • Jitter
  • Call setup
  • Duration
  • Teardown
  • Lost packets burst and gap measurements

Evaluate Jitter
Observer’s VoIP Expert displays the statistical variance of packet arrival times, also known as jitter, measured in timestamp units or RTP time units.

Measure Bursts and Gaps
Observer’s VoIP Expert provides comprehensive metrics for monitoring bursts, which are periods characterized by high rates of packet loss, and gaps, or periods characterized by low rates of packet loss. Burst and gap percentages can quickly indicate the quality of a call.

 

Track and Decode VoIP and Video
Observer offers complete VoIP and video decodes, including H.323, Session Initiation Protocol (SIP), MGCP, and SCCP (Cisco "skinny"). Observer also supports Avaya CCMS, Nortel UNIStim, and Mitel® systems.

Nortel UNIStim licensed separately

Reconstruct and Review VoIP Calls
Captured calls can be reconstructed so you can review and hear call quality issues experienced by users.

Compare VoIP to Network Performance
An analyzer with comprehensive VoIP analysis, Observer has the ability to track VoIP as well as overall network performance. Observer can identify whether jitter or delay is being caused by other applications on the network.

Monitor VoWLAN
With the Network Instruments Distributed Network Analysis (NI-DNA) architecture, all of Observer’s VoIP enhancements are automatically available across multiple topologies. For example, Observer’s VoIP Expert has the capability to monitor VoIP traffic even over wireless networks.

VOIPSTUNT; THE OTHER FREE* CALLS PHONE COMPANY


Free* phone calls all around the world: Download the free VoipStunt.

VoipStunt is a free program that uses the latest technology to bring free and high-quality voice communications to people all over the world. When you use the free VoipStunt software, you can call regular phones in various popular destinations for free or call at an incredible low rate to any other phone on the planet.

You can also call all your online friends (peer-to-peer calls) as long as you like, for free. Just click here to download VoipStunt; the download should take only a few moments depending on your connection speed.

Download the free VoipStunt!

System requirements
PC running Windows Vista, XP, 2000 (with SP2)
300 MHz processor
128 MB RAM
10 MB free disk space on your hard drive
Sound Card, and headset with microphone
Internet Connection broadband: Cable, DSL, with minimum 64 kbit/s up/downstream)

Download VoipStunt!

How to Use VoipCheap with your SIP device

How to Use VoipCheap with your SIP device

You need a VoipCheap username and password in order to call via our network. So first sign up with VoipCheap by downloading and installing the application and create your login.

In order to call ULTRA CHEAP via the VoipCheap network, enter the settings below:

You can use VoipCheap with the following types of Sip devices:

SIP ATA (Analogue Telephone Adapter)
SIP Router
xDSL Modem
The most devices are equipped with a combination of the following ports.
Example 1

(this is merely an example layout, every type of device can be different)
Example 2

(this is merely an example layout, every type of device can be different)
(A)DSL: connect your line from your (A)DSL provider (not available on a ATA)
WAN: connect your line from your xDSL modem/router
LAN: port for your (home) network, you can connect e.g. your PC, lap-top or wireless router
PHONE: here you can connect your analogue telephone
LINE: connect your analogue (PSTN) telephone line
USB: you can connect PC or lap-top with a free USB port

Some SIP devices have more than one LAN port and/or PHONE port available.
For the hardware connections from your SIP device look at the above information and your user manual.
After connecting the hardware you have to make sure that your software is installed and configured the right way.

Instructions voipcheap

How to Use VoipCheap

System Requirements^ top

In order to use the software, your computer must meet the following minimum system requirements.

Minimum System Requirements:

  • PC running Windows Vista, XP, 2000 (with SP2)
  • 300 MHz processor
  • 128 MB RAM
  • 10 MB free disk space on your hard drive
  • Sound Card and a headset
  • Internet Connection broadband: Cable, DSL, with minimum 64 kbit/s up/downstream)

However, in order to take advantage of all of the advanced features of VoipCheap and to experience the best sound quality possible, we highly recommend the following configuration.

Recommended System Requirements:

  • PC running Windows Vista, XP, 2000 (with SP2)
  • 1 GHz processor
  • 256 MB RAM
  • 30 MB free space on your hard drive
  • Full duplex sound card (most sound cards made after 1998), headset
  • Cable, DSL or equivalent broadband connection to Internet

Downloading VoipCheap ^ top

The software is free to download and you can always get the latest version here. If you have any problems using VoipCheap, please first make sure that you are using the most recent version of the software.

To download VoipCheap to your computer, simply click the download link. Save the installation file to your computer. Be sure to remember where you saved the file (for instance the Desktop).

Installation ^ top

Double-click the installation file you just downloaded to start installing VoipCheap on your computer.

VoipCheap starts automatically each time you start windows. With VoipCheap always running, other users will be more likely to find you online. You can change these settings at any time from the VoipCheap program by selecting "options".

Starting VoipCheap for the First Time ^ top

The first time you start VoipCheap, you will be asked to choose a User Name and password. The User Name and password fields are required in order to use VoipCheap. You can choose any name but it must be at least 6 characters in length. If the name is already in use by someone else you will have to try another name.

Making your first VoipCheap call ^ top

For a call to any online VoipCheap user, simply enter the username in the textbox and click the dial button. For a call to any regular phone, enter the desired number in the textbox and click the dial-button. If you are calling a land line in one of our free destinations, the call will be placed at no costs at all. For all other calls, you will be asked to buy credits first.

Please note that when you call a number (even if it's local) you should always dial 00 + countrycode + areacode + subscribernumber)

Improving Sound Quality ^ top

To get the best possible sound quality, we highly recommend you try the following:

  • Use a headset with a built in microphone. Headsets are available for purchase at most computer retailers and will dramatically improve sound quality.
  • Tell your friend to get a headset. Note that voice quality is affected by the equipment on both sides of the conversation. The best way to ensure high quality sound is to have a headset on both ends of the conversation.

If you don't have a headset, you are still likely to improve sound quality if you:

  • Use headphones instead of your computer speakers
  • Try moving the microphone closer or further away from your mouth
  • Use an external microphone (note that most laptops use low-quality microphones)
  • Update your soundcard drivers
  • Note that if you don't own a microphone, you may be able to use a pair of headphones as a temporary solution by connecting these to the microphone jack of your sound card. Try it!

Tabs ^ top

VoipCheap is divided into several tabs, each with a specific purpose.

The Contacts Tab shows other VoipCheap users which you have added to your Contact List. The icon next to the User Name indicates the Online Status of these users. You can right-click any User Name in your Contact List to see a number of choices for communicating with, or managing this user in your Contact List.

The Dial pad Tab shows you a graphic representation of the buttons you find on any ordinary phone, and they work accordingly.

Speed-dial text field ^ top

The Text Box near the bottom of the main VoipCheap window allows you to call directly by entering their User Name or phone number and pressing enter.

Calling with VoipCheap ^ top

There are several ways to call with VoipCheap:

  • From the textbox, enter the User Name of another VoipCheap user, or the desired phone number and press enter.
  • Double-click a User Name in your contact list.
  • Use the dialpad to make a call just like you do on a regular phone.
  • Or use the keypad on your PC.

    Please note that when you call a number (even if it's local) you should always dial 00 + countrycode + areacode + subscribernumber

Using a SIP device^ top

If you want to use your own preferred SIP device, but also want to profit from the great VoIPCheap offers, you can click here for information about setting up your SIP device with VoIPCheap.

Using other hardware^ top

VoIPCheap has selected, tested and certified various USB phones, headsets, routers and other hardware for your convenience. Click here for an overview.

Need more info?^ top

Check our frequently asked questions.

Version updates ^ top

We are constantly upgrading our software. If you want to know more about the latest changes click here.

Need more info?^ top

List of commercial voice over IP network providers

This is a list of commercial voice over IP network providers, arranged alphabetically with no restriction to region. Only operating providers with customers should be included. See also Category:Free VoIP software.

Adams Cable
AIM Phoneline
AIM Call Out
AT&T CallVantage
Bellshare (Germany and USA)
Broadvoice
BT Group (UK trading as BT Broadband Talk)
Cable & Wireless (Global product)
Cbeyond
Clearwire (only for Clearwire Wireless customers)
Charter Communications
Comcast Digital Voice
Covad (ClearEdge Office, Pro and Integrated access)
Cox Communications (Northern Virginia)(Parts of Rhode Island)
Deltathree (Global)
Engin (Australia)
FaktorTel (Australia)
Gizmo Project (SIPphone)
iTalkBB
Jajah (connects two regular telephones)
Lingo
Mediacom
Modern Telegraph
Net2Phone
ntl:Telewest Business (part of Virgin Media)
Packet8 (8x8)
Parlino
Primus Canada
Qwest Communications
Sipgate (Germany, Austria, UK)
Shaw Communications
Skype
Speakeasy
Suddenlink Communications
Teamspeak
Tesco (UK)
Truphone
Time Warner
Vbuzzer
Verizon VoiceWing
VoicePulse
Voipfone (mainly UK)
VoipStunt
Vonage
Voxbone
Vyke
Wengo
Windows Live Call
WOW - Internet Cable Phone
Yahoo - Voice

IP Phone

An IP phone uses Voice over IP technologies allowing telephone calls to be made over the internet instead of the ordinary PSTN system. The phones use protocols such as Session Initiation Protocol, Skinny Client Control Protocol or one of various proprietary protocols such as that used by Skype. IP phones can be simple software-based Softphones or purpose-built hardware devices that appear much like an ordinary telephone or cordless phone or an ATA (analog telephony adapter) which allows to reuse ordinary PSTN phones. One of the primary motivations for implementing such a system is the lower calling cost. When calling other IP phones over the internet one only pays for the usually fixed cost internet bandwidth.

It may have many features an analog doesn't support, such as e-mail-like IDs for contacts that may be easier to remember than names or phone numbers.

Hardware of a stand alone IP phone
The overall hardware may look like telephone or mobile phone. An IP phone has the following hardware components.

- Speaker/ear phone and microphone
Key pad / touch pad to enter phone number and text (not used for ATAs).
- Display hardware to feedback user input and show caller-id/messages (not used for ATAs). - General purpose processor (GPP) to process application messages.
- DSP processor to process RTP messages, Generally IC manufacturers provides GPP and DSP in single chip.
- ADC and DAC converters: To convert voice to digital data and vice versa.
- Ethernet or wireless network hardware to send and receive messages on data network.
- Power source might be a battery or DC source. Some IP phones however run on Power over ethernet".

Other devices
There are several WiFi enabled mobile phones and PDAs that come pre-loaded with SIP clients or are at least capable of running IP telephony clients. Some IP phones may also support PSTN phone lines directly.

Analog telephony adapters
These are usually rectangular boxes that are connected to the internet or Local area network using an Ethernet port and have sockets to connect one or more PSTN phones. Such devices are sent out to customers who sign up with various commercial VoIP providers allowing them to continue using their existing PSTN based telephones.

Another type of gateway device acts as a simple GSM base station and regular mobile phones can connect to this and make VoIP calls. While a license is required to run one of these in most countries these can be useful on ships or remote areas where a low-powered gateway transmitting on unused frequencies is likely to go unnoticed.

Voip Implementation

Because UDP does not provide a mechanism to ensure that data packets are delivered in sequential order, or provide Quality of Service (known as QoS) guarantees, VoIP implementations face problems dealing with latency and jitter. This is especially true when satellite circuits are involved, due to long round trip propagation delay (400 milliseconds to 600 milliseconds for geostationary satellite). The receiving node must restructure IP packets that may be out of order, delayed or missing, while ensuring that the audio stream maintains a proper time consistency. This functionality is usually accomplished by means of a jitter buffer in the voice engine.

Another challenge is routing VoIP traffic through firewalls and address translators. Private Session Border Controllers are used along with firewalls to enable VoIP calls to and from a protected enterprise network. Skype uses a proprietary protocol to route calls through other Skype peers on the network, allowing it to traverse symmetric NATs and firewalls. Other methods to traverse firewalls involve using protocols such as STUN or ICE.

VoIP challenges:

Available bandwidth
Delay/Network Latency
Packet loss
Jitter
Echo
Security
Reliability
Pulse dialing to DTMF translation
Many VoIP providers do not translate pulse dialing from older phones to DTMF. The VoIP user may use a VoIP Pulse to Tone Converter, if needed.

Fixed delays cannot be controlled but some delays can be minimized by marking voice packets as being delay-sensitive (see, for example, Diffserv).

The principal cause of packet loss is congestion, which can be controlled by congestion management and avoidance. Carrier VoIP networks avoid congestion by means of teletraffic engineering.

Variation in delay is called jitter. The effects of jitter can be mitigated by storing voice packets in a jitter buffer upon arrival and before producing audio, although increases delay. This avoids a condition known as buffer underrun, in which the voice engine is missing audio since the next voice packet has not yet arrived.

Common causes of echo include impedance mismatches in analog circuitry, and acoustic coupling of the transmit and receive signal at the receiving end.

Voip History

Voice over Internet Protocol has been a subject of interest almost since the first computer network. By 1973, voice was being transmitted over the early Internet.

The technology for transmitting voice conversations over the internet has been available to end-users since at least the 1990's. In 1996, a shrink-wrapped software product called Vocaltec Internet Phone Release 4 provided VoIP, along with extra features such as voice mail and caller id. However, it did not offer a gateway to the analog POTS, so it was only possible to speak to other Vocaltec Internet Phone users.

In 1997, Level 3 began development of its first softswitch (a term they invented in 1998); softswitches were designed to replace a traditional hardware switchboards by serving as the gateway between two telephone networks.

Voice over Internet Protocol

"Digital voice" redirects here. For the service of the same name, see Comcast Digital Voice.

An overview of how VoIP works
A typical analog telephone adapter for connecting an ordinary phone to a VoIP networkVoice over Internet Protocol (VoIP) is a protocol optimized for the transmission of voice through the Internet or other packet switched networks. VoIP is often used abstractly to refer to the actual transmission of voice (rather than the protocol implementing it). VoIP is also known as IP Telephony, Internet telephony, Broadband telephony, Broadband Phone and Voice over Broadband. "VoIP" is pronounced voyp.

Companies providing VoIP service are commonly referred to as providers, and protocols which are used to carry voice signals over the IP network are commonly referred to as Voice over IP or VoIP protocols. They may be viewed as commercial realizations of the experimental Network Voice Protocol (1973) invented for the ARPANET providers. Some cost savings are due to utilizing a single network to carry voice and data, especially where users have existing underutilized network capacity that can carry VoIP at no additional cost. VoIP to VoIP phone calls are sometimes free, while VoIP to public switched telephone networks, PSTN, may have a cost that is borne by the VoIP user.

Voice over IP protocols carry telephony signals as digital audio, typically reduced in data rate using speech data compression techniques, encapsulated in a data packet stream over IP.

There are two types of PSTN to VoIP services: Direct Inward Dialing (DID) and access numbers. DID will connect the caller directly to the VoIP user while access numbers require the caller to input the extension number of the VoIP user.

Sending text messages (SMS) via Voipwise

Voipwise offers various ways to send ultra cheap text messages from 0 ct/message! You can use the Voipwise software or use the SMS option in your personal pages.

And it gets even better: Sending text messages via Voipwise is not only very cheap, you can also send messages to multiple mobile numbers AND decide when you want the messages to be sent.

For example: You can text all your friends your new years greetings without even touching your phone. Just schedule the messages to be sent at the desired moment and off you go!

Costs for the text messages are settled via your Voipwise account. Click here for our CHEAP sms rates!

For help sending text messages (SMS), click here.