1.13 P
Interface
The following interfaces can be used to establish a private network:
T1 (TIE [E & M])
PRI (QSIG)
VoIP
The available interfaces depend on the cards installed in the PBX.
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Feature Manual
Interface
Network Type
Digital (64 kbps × 24 channels)
Digital (ISDN 23B+D)
Internet Protocol (IP)