Both end devices should be using same codecs. set dtmf = rfc2833 and set
canreinvite = no in sip.conf for both endpoints. This should solve the
problem. you should also check which codecs support rfc2833 for dtmf and
use that codec.
On 3/29/07, Gordon Henderson <[EMAIL PROTECTED]> wrote:
On Wed, 28 Mar 2007, Alan Chandler wrote:
> I cannot seem to get any transfers to work at all. The console show I
> have #1 amd #2 set up for Blind and Attended Transfer, but when I hit
> these buttons on my handset nothing happens (other than I hear the dtmf
> tones on the other end of the line).
>
> roo*CLI> show features
> Builtin Feature Default Current
> --------------- ------- -------
> Pickup *8 *8
> Blind Transfer # #1
> Attended Transfer #2
> One Touch Monitor *1
> Disconnect Call * *0
>
>
> I am using the tT options in my dial calls (via a macro)
>
> [macro-extension]
> exten => s,1,Dial(${ARG1},20,tT)
I had to fiddle with other things to make this work (needed for the
Siemens CP4600 SIP/DECT phone)
I found that the default timeouts were a bit tight for my likings (and the
people who I was testing this with!)
So in features.conf I have:
transferdigittimeout = 8 ; Number of seconds to wait between digits
when transfering a call
featuredigittimeout = 999 ; Max time (ms) between digits for
; feature activation. Default is 500
[featuremap]
blindxfer => #1 ; Blind transfer
atxfer => ## ; Attended transfer
disconnect => #0 ; Disconnect
If it's still not working, are you sure the DTMF is being picked
up/transmitted correctly? If it's in-band, is it a codec other than G711?
(which might give you problems)
Gordon
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Regards
Rizwan Hisham
Software Engineer
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