PRI (Primary Rate Interface ) is a telecommunications interface standard primarily used on an ISDN (Integrated Service Digital Network) to perform various data transmissions and DS0 voice between the users and network and that allows traditional telephone lines to transport voice, data and video traffic, among others. PRI is the standard for providing telecommunication services to offices and enterprises.
The PRI card is used to connect PRI lines to IP PBX / IP telephony servers so that all IP phones /analog phones (Extensions) can make outgoing calls or receive incoming calls using it. Basically, PRI line is a digital trunk line provided by a telecommunications service provider that allows users behind a PBX to make 30 simultaneous incoming/outgoing calls using a single line.
These cards come with 1-port, 2-ports, 4-ports, 8-ports, and 16-ports, so you can choose the card according to your company’s telecommunications requirements and needs.
PRI is a telecommunication interface carrying voice and data transmission betweem network and a user using ISDN(Integrated Service Digital Network). PRI provide telecommunication services to offices. It based on T-carrier(T1) line in US and Canada,it consist 24 channels and E-carrier(E1) line
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