SIP sessions: 0, RJ-45 ports: 1, PRI: 0, B-channels: 0, FXO: 0, FXS: 1
- 1x FXS RJ-11
- Full support for the VoIP protocol
- Support for the T.38 fax protocol
- Call waiting, hold, park, transfer, conferencing (local and server-side), MWI, caller ID, and more