4 Configurations on Web Interface
Figure 4- 26 Configure Default SIP Parameters & Early Media
Table 4- 10 Explanation of Default SIP Parameters & Early Media Parameters
PRACK(RFC3262)
If this parameter is enabled, the FXS GW device supports
reliable transmission of provisional response
PRACK Only for 18x with
If this parameter is enabled, only PRACK will be sent when
SDP
there’s SDP in 18x response
Early Media
If this parameter is enabled, the FXS GW device supports the
receiving of Early Media.
Early Answer
If this parameter is enabled, the FXS GW device supports early
answer
Session Timer (RFC4028)
Whether to enable ‘session timer’, default value is ‘not enable’.
The interval for refreshing session; default value is 1800s.
Session-Expires
The Session-Expires header field conveys the session interval
for a SIP session.
The minimum interval for refreshing session; default value is
Min-SE
1800s.
The Min-SE header field indicates the minimum value for the
session interval.
Session Refresh Method
The method to refresh session; default value is INVITE.
Gateway-128s User Manual
48
Summary of Contents for FXS-128s
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