Dinstar DAG2000-24S - Page 47

4 Configurations on Web Interface
DAG2000-24/32SUser Manual
Copyright©2011-2020 Dinstar
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Figure 4-18 Configure Default SIP Parameters & Early Media
Table 4-8 Explanation of Default SIP Parameters & Early Media Parameters
Domain Query Type
There are two modes: A QUERY and SRV QUERY. Default is
‘A QUERY’.
Domain Re-resolution
Interval
The interval for re-parsing domain name. Range is from 0 to
3600s. Default value is 0, which means no re-parsing.
DNS cache
If this parameter is enabled, the DAG2000 device will cache the
DNS query results.
PRACK(RFC3262)
If this parameter is enabled, the DAG2000
device supports
reliable transmission of provisional response
PRACK Only for 18x with
SDP
If this parameter is enabled, only PRACK will be sent when
there’s SDP in 18x response
Early Media
If this parameter is enabled, the DAG2000 device supports the
receiving of Early Media.
Early Answer
If this parameter is enabled, the DAG2000 device supports early
answer
A
nswer Update without
Offer (for Port Group)
If this parameter is enabled,
the system will update answer
proactively although no offer is received.
Session Timer (RFC4028) Whether to enable ‘session timer’, default value is ‘not enable’.
Session-Expires
The interval for refreshing session; default value is 1800s.
The Session-Expires header field conveys the session interval
for a SIP session.
Min-SE
The minimum interval for refreshing session; default value is
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.