Dinstar FXS - Page 46

Dinstar FXS Voice Gateway User Manual
40
Domain Re-resolution
Interval
Default 0: forbidden
DNS cache
Cache the DNS query result
Early Media
Support receive Early Media
PRACK(RFC3262)
Support reliable transmission of provisional response
PRACK Only for 18x with
SDP
Send PRACK only when there’s SDP in 18x response
Early Answer
Support contain SDP in 18x
Session Timer (RFC4028)
Enable session timer, default to no
Session-Expires
The Session-Expires header field conveys the session interval for
a SIP session.
Min-SE
Min-SE header field indicates the minimum value for the session
interval.
T1
T1 timer of SIP protocol, default is 500ms
T2
T2 timer of SIP protocol, default is 400ms
T4
T4 timer of SIP protocol, default is 500ms
Max Timeout
The max timeout of sending or receiving, default is 32s
Heartbeat Interval
Default is 10s.
Heartbeat Timeout
Default to 16s
Username of
OPTION(Heartbeat) for “SIP
Server”
The user ID part of OPTION SIP message in the heartbeat
request for SIP server
Username of
OPTION(Heartbeat) for “IP
TRUNK”
The user ID part of OPTION SIP message in the heartbeat
request for IP trunk