PRI System

What is PRI System?

 

There is only one line physically terminating on the customer PBX but still a PRI system can receive/send 30 calls simultaneously! A PRI system is end to end digital circuit. A PRI (Primary Rate Interface) system is a form of ISDN (Integrated Services Digital Network) line which is a telecommunication standard that enables traditional phone lines to carry voice, data and video traffic, among others. A PRI system consists of two pairs of copper lines terminating on a modem from a service provider premises to the customer premises. It uses multiplexing/de-multiplexing techniques to carry more than one channel in a single circuit. There are two common forms of PRI lines – E1 (which carry 30 channels in the two pairs of copper lines, common in Europe, India) and T1 (which carry 23/24 channels in the two pairs of copper lines, common in United States). Each channel in a PRI system provides 64 Kbps for data transmission. A PRI system can connect to both Analog/Mixed EPABX systems and also the newer IP PBX systems. A PRI Card / Interface might be required to terminate the PRI circuit on the PBX. A PRI system can also be used to connect two PBX systems thereby providing 30 channels between them for interoperability.

 

How does PRI System works?

 

A trunk is a cost-efficient form of Voice Over IP (VoIP) that leverages a network connection to a Private Branch Exchange (PBX), or digital switch. Each trunk can support up to 23 channels and requires an onsite PBX. Trunking offers additional savings through oversubscription, a concept that operates on a notion that your users will not need the phone at the same time.

 

To get more information or to receive a quote on a PRI System, then click the button below to get started.

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Lower Bill Network has been helping customers Nationwide since 2012.

 

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