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Voice over IP




Answering Service > Call Center Resource > Computers and Technology > Communications > Voice over IP

Voice over IP

by Andrew Taub

VoIP consists of 2 major components.....


Making Calls Over the Internet--Residential


This is the most common use of VoIP. It is often referred to as VoIP lines or trunks. If you have a high speed internet connection, like cable modem, DSL, or T1, you can use your high speed connection to make phone calls on the internet. There are many companies like Vonage, Lingo, and VoiceWing (Verizon) that offer VoIP lines. Cable companies also offer VoIP lines, but only if you have their cable modem service. So, to boil it down, instead of getting your dial tone from Verizon over the traditional phone network, you get your dial done from your internet company. Any phone system made (even an old one) can take advantage of VoIP lines. You do not need an IP based (IP PBX) business telephone system or even IP compatible office phone system. This is one of the biggest misconceptions about VoIP.


The advantage of VoIP lines are:


Lower Bills. Usually you pay a flat monthly rate and all your calls in the USA and Canada are free


You can take your number with you. If you move around the corner or across the country with VoIP you can keep your existing phone number even if you move to a different area code.


Multiple area codes. You can get phone numbers from different area codes or even overseas numbers.


Portability. You can move the VoIP router with you and take your service easily with you. You can even set it up to use your laptop with a virtual soft-phone and a WiFi connections to make calls from anywhere you can get high speed internet access.


Features. VoIP lines come with Caller ID, Call Forwarding, and lots of other great features.


The problems with VoIP lines are:


Quality is not quite as good as traditional phone service, but its close and getting better all the time.


Set up can be very challenging, especially if you are planning on using your own router or have a network.


Depending on how fast your internet connection is, it may be possible to make several calls at the same time over the internet. However, the more calls you make at once the slower your internet connection will be and the poorer the sound quality of your calls will be.


Faxes, modem, and alarm systems dont work well over VoIP lines. Sometimes they wont work at all. Local fire and building codes often require traditional lines for fire alarm systems.


If you need a lot of lines, you may need more then one high speed connection, so the cost of the high speed internet connection may outweigh the savings.


There are some minor technical issue using VoIP lines and Automated Attendants and Voice Mail systems.


If your internet access goes down, all your phone lines go down too.
VoIP lines normally dont work if the power does out, but you can set up back up batteries.


Right now the Government does not tax VoIP service. If that changes the price VoIP may not be as attractive anymore.


Making Calls Over the Internet--Business


Business class VoIP works in much the same way as for residential VoIP with one major difference. With business class VoIP a T1 is usually delivered to your office that provides both VoIP voice lines and Internet service. This means that your VoIP provider and your ISP are the same company This distinction is very important once you need more then 3 or 4 lines. Since your Internet connection is coming from the VoIP phone company problems such as latency, jitter, and static are greatly reduced. Basically, your call has to travel a shorter distance. With residential, your call goes from your ISP, to your VoIP phone company, to the person your calling. Thats 3 steps, or hops, and problems can occur anywhere along with way. Even if there are no problem, there can be slight delays in your voice transmission. With business class VoIP, your ISP and your VoIP telephone carrier are the same company. That reduces the call to 2 hops, so things work better and you can get more calls on the same Internet connection. Your telephone system sees VoIP lines just like traditional dial tones.


Business class VoIP also has the advantage of being dynamically allocated. This means that when fewer people are on the phones, the Internet speed is faster. Voice always gets priority, so phone lines are always available. Packages are available from 5 to 105 lines or more and may come with unlimited calling or a large allotment of included minutes.


Business service is far more important then residential, so its vital that you choose the right carrier. There are several major carriers like Verizon and Sprint and many smaller national carrier that youve probably never heard of such as XO Communications. There are even more regional carriers that only service a small area and even more resellers that just package someone elses service. Let the experts at Teleco help you navigate through the maze of carriers and offers.


Connection Remote Workers or Remote Offices....Voice over IP Stations. FPRIVATE "TYPE=PICT;ALT=nj ny nyc new jersey new york city business telephone system PBX nec toshiba"

This is the 2nd major use of VoIP. You can "connect" to your office phone system from anywhere there is a high speed internet connection. Using a special VoIP telephone or a Laptop "soft phone" you can work from home or a hotel and its just like being in your office. You have access to all your phone system features including the intercom, paging, all outside lines, voice mail, and even your extension can ring on your VoIP phone. Best of all, you dont lose the use of your computer. One high speed internet connection can run your VoIP phone and your PC at the same time. There is even an IP cordless phone that will run on your Wi-Fi 802.11 wireless network.


With this same technology, you can link multiple office together into one seamless phone system. You can even share lines or one voice mail system. You can even run your entire phone system over your office LAN or WAN without separate voice wiring (often called Pure IP or IP Based telephone systems), though that is very expensive and complicated and is best suited for very large companies with full time IT staffs.


Voice over IP is very exciting and more and more people are using it everyday. Let the experts at Teleco help you understand if VoIP is right for you. Voice over IP is available on both the NEC IPK and Toshiba CTX digital telephone systems.