This is the port used by the proxy to communicate with the upstream SIP PBX.
SNMP ID: 2.33.4.2.1.14
Telnet path: /Setup/Voice-Call-Manager/Line/SIP-PBX/PBX
Possible Telnet values:
- 1 to 65536
Default: 0
Special values: 0: Dynamic port selection; the port is automatically selected from the pool of available port numbers.
Note: If line (re-)registration is deactivated, the local port has to be defined with a fixed value, and this also has to be entered into the SIP PBX to ensure that both ends can send SIP signaling.