Call Setup Timer
If a provisional response is not received in this amount of time, the call will auto-congest. Defaults to 64 times the default
T1 timer.
Session Timers
Session-Timers feature operates in the following three modes: originate, Request and run session-timers always; accept,
run session-timers only when requested by other UA; refuse, do not run session timers in any case.
Minimum Session
Minimum session refresh interval in seconds. Default is 90secs.
Maximum
Session Refresh
Interval
Maximum session refresh interval in seconds. Defaults to 1800s.
Session
Refresher
The session refresher, uac or uas. Defaults to uas.
Advanced: Signaling Settings
Table 4-1-5Definition of Signaling Options
Options
Definition
Progress
Inband
If we should generate in-band ringing. Always use ‘never’ to never use in-band signalling,
Even in cases where some buggy devices might not render it. Valid values: yes, no, never. Default: never.
Append
user=phone
to URI
Whether or not to add;’ user=phone’ to URIs that contain a valid phone number.
Add Q.850
Reason
Headers
Whether or not to add Reason header and to use it if it is available.
Honor SDP
Version
By default, the gateway will honor the session version number in SDP packets and will only modify the SDP session if the
version number changes. Turn This option off to force the SDP session version number and treat all SDP data as new data.
This is require for devices that send non-standard SDP packets (observed with Microsoft OC S).By default
This option is on.
Allow
Transfers
Whether or not to globally enable transfers. Choosing ‘no’ will disable all transfers (unless enable in peers or users). Default is
enabled.
Allow
Promiscuous
Redirects
Whether or not to allow 302 or REDIR to non-local SIP address .Note that promiscredir when redirects are made to the local
system will cause loops since this gateway is incapable of performing a ‘hairpin’ call.
Max
Forwards
Setting for the SIP Max-Forwards header (loop prevention).
Send
TRYING on
REGISTER
Send 100 Trying when the endpoint registers.
Table 4-1-6 Definition of Fax Options
Options
Definition
Mode
Working mode T.38 and T.30
Enabled
Enabled
Error
Correction
Error Correction
