Name for authentication at any upstream SIP PBX when the user's domain is the same as the domain of a SIP PBX line.
SNMP ID: 2.33.3.2.2.5
Telnet path: /Setup/Voice-Call-Manager/User/ISDN-User/Users
Possible Telnet values:
- Max. 63 characters
Default: Blank
Note: Only required when the user registers at an upstream SIP PBX.