What is a Voice PRI Line?

A Primary Rate Interface (PRI) line is an Integrated Services Digital Network (ISDN) line (which is a standard telecommunication phone line), enabling voice, data, and video to be transmitted across a traditional telephone line.

A Voice PRI line can process 23 calls, whether incoming or outgoing, all at one time. PRIs are end-to-end digital circuits providing comparably higher voice quality than analog trunk lines.

PRI circuits have two pairs of copper lines, terminating on a modem spanning from the service provider to the customer’s business.

PRI Line Benefits

A. More flexibility in handling incoming as well as outgoing phone calls

B. Direct Inward Dialing (DID) facilitates external calls to be directly forwarded on to employees without needing the service of an operator or receptionist.

C. Transparent, easy transfer of external phone calls to outside numbers.

D. A PRI line accommodates voice connectivity, video conferencing, data transfer, faxes and more.

E. Call Display, Call Waiting, Call Forwarding, Three-way calling plus many more additional features are all included at no extra charge.