SWG
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20XX
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4S Wireless Gateways User Manual
47
Call Limit
Usually used when this sip works as a trunk. Limit the
maximum number of channels supported by sip trunks.
Advanced: Signaling Settings
Figure 4-1-6 Signaling Settings
Table 4-1-4 Definition of Signaling Options
Options
Definition
Progress Inband
Whether the tone is ringing.
Never
：
Indicates that the incoming calls are never applied.
Option 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 a reason header and use it if is
available.
Ignore 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.
