DAG1000/2000 Series FXS Voice Gateway User Manual
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SIP parameter description
:
SUBSCRIBE for MWI
Voicemail message indicator, it is to be realized in the way
of NOTIFY
Voicemail User ID
Access code to voicemail box
RTP Mode in SDP when Call Holding
When call come into holding, if select to receive and not send
packet, then the local can hear call waiting tone. If select to
not receive and not send packet, then doesn’t play call
waiting tone.
IP-to-IP Call
Enable this function, users may use the * business call IP
address on the phone.
URI Includes user=phone
SIP carries the information, the system defaults not open.
Only Accept Call from Server
Default is no, it indicates the DAG accept incoming call from
SIP server only
Anonymous Call
Enable anonymous call, “anonymous” will include in SIP
message
Reject Anonymous Call
Enable this function, reject all anonymous call. Disable by
default
Send Flash Event
After hook flash, flash event will report flash message to server
and server deal with this information.
# as ending Dial Key
Dial-up, use # as a end descriptor.
PRACK
RFC3262 defined an optional extension methods—PRACK
(
provisional ACK
)
, Used to support the reliability of the
temporary response.
Value of “Refer To“ refers to ”Contact”
Its function is to require the receiving party contact with the
third party through the use of supplied in the request in the
address information. “Refer to” field of SIP message fill in
“contact header”.
Domain Query Type
There are two modes option: A QUERY and SRV QUERY.
Default is A QUERY.
Domain Re-resolution Interval
Default 0: forbidden
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.