If an incoming internal call is directed to an ISDN user, this prefix is added to the calling party ID, if available. If a line prefix is defined, this is placed in front of the whole of the called number.
SNMP ID: 2.33.3.2.3
Telnet path: /Setup/Voice-Call-Manager/User/ISDN-User
Possible Telnet values:
- Max. 15 numbers or *
Default: *