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DTMF Method
This parameter specifies the mechanism to transmit DTMF digits. There
are7 modes supported: in audio which means DTMF is combined in audio
signal (not very reliable with low bit-rate codec), via RTP (RFC2833), or via
SIP INFO. Multiple DTMF transmission schemas can be selected.
1 – in-audio
2 – RFC2833
3 – in-audio and RFC2833
4 – SIP Info
5 – in-audio and RFC2833
6 – SIP Info and RFC2833
7 – in-audio, RFC2833, and SIP Info
No Key Entry Timeout
Default is 4 seconds.
Local SIP Listen Port
Default is ch1-8:5060++;. Here the ++ indicates increments by 2, so port 1
is set at 5060, port at 5062 and so on. This setting can be used with Round
Robin and/or Flexible setting below to configure different ports to be placed
under different Round Robin groups.
Round Robin and/or
Flexible
Default is rr:1-8;
The syntax is pretty straight-forward here. The rr stands for Round Robin
and the numbers stand for the ports that belong to that round robin group.
For example:-
rr:1-8; -> Round robin within the first 4 ports i.e. outgoing calls will be
forwarded to the next available port within the group of ports 1 to 4.
rr:1,3-6,8;rr:2,7; -> Round robin within port 1,3,4,5,6 and 8; Second round
robin group within ports 2 and 7 i.e. outgoing calls to ports 1,3,4,5,6 and 8
will be forwarded to the next available port within this group ONLY.
Outgoing calls to port 2 and 7 will be forwarded to the next available port
between ports 2 and 7 ONLY.
** In order to terminate a call on FXO port 2 or 7 you will need to change its
Local SIP Listen port accordingly.
Prefix to specify Port
(1 stage dialing method)
Default is 99.
Syntax to USE this feature: prefix# (thats 99) + ch# (could be anything from
1 to 8) + dialing# will result in this call forwarded to FXO port (ch#)
immediately.
Grandstream Networks, Inc. GXW-410x User Manual Page 22 of 37
Firmware 1.0.0.53 Updated: 04/2007