DAG3000-112S VoIP Gateway User Manual
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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
If this parameter is enabled, SDP will be contained in 18x
Session Timer (RFC4028)
Whether to enable
‘
session timer
’, default
value is
‘
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 24S/32s
Heartbeat Interval
Default is 10s.
Heartbeat Timeout
Default to 24S/32s
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
Voicemail instructions:
Here takes the DAG3000-112S gateway together with Elastix as the example to introduce how
voicemail works in the gateway.
1
)
After the gateway registers to Elastix server, enable the voicemail function in Elastix for the
corresponding extension number and then set password. As below
: