T1 PRI Line Price Quote Comparisons in Real-Time!

T1 PRI

“When the top T1 providers must compete for your business, you win!”

T1 PRI (Primary Rate Interface) is an ISDN connection designed to be provided over T1 lines. In the United States, a PRI line consists of 24 (64 kbps each) DS0 channels. T1 PRI lines are commonly configured so that 23 channels serve as B (Bearer) channels and one as a D (delta) channel. (For more about T1 PRI please click here)

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We are a partnership which offers the services of the 30 largest telecom providers in the US. These providers include Sprint, Verizon, ATT, Qwest, XO Communications, Airespring, Level 3, NuVox, and virtually all other major telecom providers.

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We provide real-time price comparisons for the services of all top telecom providers. We offer virtually all commercial telecom services including dsl, t1, ethernet, ds3, voice, SIP, PRI, commercial VoIP, internet, wireless, integrated, and OC services. Our unique partnerships with the major telecom providers allow us to compare their prices to all of their competition so that you, the customer, can obtain the best possible prices for the service you need. To check out our real-time pricing and availability tool, just click on the “Home” tab at the top of this page. This pricing tool is free, easy to use, and there is no obligation.

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Our goal is to provide you, the customer, with the advantage when you are shopping for commercial telecom services. With our patented pricing tool, the prices are always listed in order of best to worst. This encourages our providers to put their best foot forward when providing quotes to you. With us, the providers always know that their quotes will be listed with those of their competitors, with the most competitive quotes listed at the top. Whether your need is new, or you would like to see if you are paying the best possible price for your existing service, we will be happy to help you for free and with no obligation.

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T1 PRI Definition Continued.

Each B channel carries data, voice, and other services. The D channel carries control and signaling information for the B channels. B channels can be used as independent channels to simultaneously provide a variety of services such as data, voice, or imaging. They also have the flexibility to be bonded, as needed, to provide higher bandwidth for special needs such as video conferencing. A significant difference between T1 PRI and traditional integrated T1 is that integrated T1 requires a portion of each channel to be allocated for signaling functions. This results in a reduction in effectiveness, efficiency, potential and bandwidth for most functions of each channel of traditional T1. With T1 PRI, all signaling functions are provided by the 24th channel. This leaves each of the other 23 channels with a full 64 kbps which can be fully dedicated to bearer functions. One D channel can provide signaling functions for several other PRI lines. It is not uncommon for two D channels (one as primary, one for backup) to provide the signaling functions for a span of as many as 20 T1 PRI lines. This frees the 24th channel of each of the other PRI lines so that they can be used as additional bearer channels. Because PRI lines serve as a direct connection to the telephone company’s central office, PRI is often the preferred choice of PBX customers. T1 PRI provides many advantages over traditional T1. These include: dynamic channel allocation, call by call service selection, more PBX users can be supported, caller ID, messaging, and video conferencing. Because of increased efficiency provided by PRI, companies which switch to PRI from traditional T1 often find that they not only receive a much greater variety of services but often do not need to pay for as many trunks as they needed prior to the change. (Click here to return to top of page)

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