Primary Rate Interface


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Primary Rate Interface

(PRI) A type of ISDN connection. In North America and Japan, this consists of 24 channels, usually divided into 23 B channels and 1 D channel, and runs over the same physical interface as T1. Elsewhere the PRI has 31 user channels, usually divided into 30 B channels and 1 D channel and is based on the E1 interface.

PRI is typically used for connections such as one between a PBX (private branch exchange, a telephone exchange operated by the customer of a telephone company) and a CO (central office, of the telephone company) or IXC (inter exchange carrier, a long distance telephone company).
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References in periodicals archive ?
The company clarified that for its India enterprise business customers, voice services such as PRI (Primary Rate Interface), centrex, toll free, cloud telephony and SIP Trunk, would all continue to be offered without any interruption.
The portfolio of solutions comprises of E-line, Multi-Protocol Label Switching (MPLS), Direct Internet, BGIX (Burstable Internet), Data Center (Co-Location), Integrated Services for Digital Networks, Primary Rate Interface, all the way to Enhanced Managed Voice Solutions for wireline solutions to name a few.
With SIP--T, Ooredoo will offer customers an ultra-modern, efficient and flexible alternative to the older Primary Rate Interface (PRI) connectivity.
Pricing for primary rate interface (PRI) lines, which can support up to 30 channels for simultaneous external calls, will be dependent on how many channels are used.
Primary Rate Interface or PRI, which is the standard service used by most
The outage occurred after technicians at Du attempted to carry out an upgrade on the telco's PRI (Primary Rate Interface) line, according to a technician at the operator, who preferred to remain anonymous.
Netxcell's Video OBD can also be used by an enterprise or corporate directly by using PRI line (Primary Rate Interface - a form of ISDN), which will enable the enterprise to send video messages directly to 3G subscribers of different operators simultaneously.
The Unlimited STD plan will be offered to customers using ISDN PRI(Primary Rate Interface) services as well as regular business landlines.
The Unlimited STD plan is offered to customers using ISDN PRI (Primary Rate Interface) services as well as regular business landlines.
SIP support in the Cisco ISR and the Cbeyond network made it unnecessary for FremantleMedia to purchase primary rate interface cards for the Cisco ISR.
The NetLink PRI Gateway connects to a PBX utilizing an ISDN primary rate interface (PRI) supporting 100 or more NetLink Wireless Telephones through a single interface, significantly reducing the total cost of providing real-time voice communication to enterprise mobile workers.