ZyXEL Communications IP PBX X6004 - Manual (Page 295)

Chapter 18 Outbound Line Group
X6004 User’s Guide
295
Specific
Support Select None if the SIP server is not a Nortel MCS 5100/5200 server.
Select Nortel (MCS 5100/5200) to support the specified Nortel SIP
server.
Proxy Require Enter this (0~40 alphanumeric characters) to inform the SIP server that
this device is behind a firewall or NAT device. Fill this field in only if you
were given information by your SIP service provider.
Channel-limit Specify the maximum number of SIP calls (1~128) allowed to be made
through this trunk connection at one time.
Session Timer
Enable Session
Timer
Select this activate the X6004’s session timer. If you encounter
connectivity issues with your network or Internet, then it is suggested
that you use the session timer.
Minimum SE Enter the minimum session expiry time in seconds. The allowable range
is 90~1800 seconds.
When an incoming call requests a session expiry time that is lower than
this, the X6004 uses this value instead.
Session Expires Enter the session expiry time in seconds for all phone connections on
this trunk The allowable range is 90~86400 seconds. This value cannot
be lower than the Minimum SE.
This allows the X6004 to automatically disconnect any phone calls on
this trunk after a certain period of inactivity.
CallerID Setting Configure this section to change the format of identification you want to
send when you make VoIP phone calls.
The default format is “From: “Extension”<Extension@Server IP>”.
CallerID Viewer This field displays the caller ID format shown to the callees depending
on the setting you configure in the CallerID Name & Number and
The Extension Prefix fields.
Table 96 Configure a SIP Trunk (continued)
LABEL DESCRIPTION