DAG2000 Series FXS Voice Gateway User Manual
27
Dinstar Technologies Co., Ltd.
SIP parameter description:
Voicemail message indicator, it is to be realized in the way
of NOTIFY
Access code to voicemail box
Docking parameters, the SDP simple ability statement
Enable this function, users may use the * business call IP
address on the 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
Enable anonymous call,“anonymous” will include in SIP
message
Enable this function, reject all anonymous call. Disable by
default
Dial-up, use # as a end descriptor.
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”.
There are two modes option: A QUERY and SRV QUERY.
Default is A QUERY.
Domain Re-resolution Interval
T1 timer of SIP protocol, default is 500ms
T2 timer of SIP protocol, default is 400ms
T4 timer of SIP protocol, default is 500ms
The max timeout of sending or receiving, default is 32s
Voice mail instructions:
Here DAG work with Elastixas the example, introduces how voicemail work in DAG.
1)DAG register to Elastix server. Corresponding extension number enable voice mail function in