Voice T1

A Voice T1 is a digital phone service trunk consisting of 24 voice channels or 23 voice channels and one data channel for signaling (ISDN PRI T1). Voice T1 lines are used by businesses to provide local and long distance voice service as well as other applications including video conferencing, fax, and dial-up. T1 voice service provides increased efficiency through a PBX phone system by setting up and breaking down the phone calls faster than regular phone lines. An ISDN PRI voice T1 offers robust features like Caller ID and Direct Inward Dialing (DID) through the D channel signaling. T1 voice lines are also known as a Long Distance T1ISDN PRI T1Local T1T1 Phone Service, Digital T1, or T1 trunk.

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