asterisk users - Nov 2005 - Problems with DTMF on Polycomm Phones

hi,
 Would like to have help in fixing the DTMF problem i am facing on Polycomm
Soundpoint IP Phones
 I am having the following network setup..
 I have my Asterisk PBX server connected to the Cisco 3620 Router with an
ethernet cable which inturn is connected with a T1 circuit to my SIP
Provider..
 i have DTMF working on the Cisco 7940 phones but have problems with working
on Polycomms.. i am using G711u codec.
 Will Appreciate your help if you can give me some comments and
suggestions..
 Thanks
krishna
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At 15:36 11/7/2005, Krishna Sumanth Chava wrote:
>hi,
>
>Would like to have help in fixing the DTMF problem i am facing on Polycomm 
>Soundpoint IP Phones
>
>I am having the following network setup..
>
>I have my Asterisk PBX server connected to the Cisco 3620 Router with an 
>ethernet cable  which inturn is connected with a T1 circuit to my SIP 
>Provider..
>
>i have DTMF working on the Cisco 7940 phones but have problems with 
>working on Polycomms.. i am using G711u  codec.
>
>Will Appreciate your help if you can give me some comments and suggestions..

No problems here with Polycom 501s.  Using rfc2833 in "extensions"
in Asterisk.  Changing to "inband" sometimes helps.

What are your other settings?

hi doug,
 I do have rfc2833 and i also tried with inband ... the actual scenario is
like this...
 I have my polycomms working for POTS which i connect using through Cisco
As5300 but when i try to send my call to a VOIP provider using a T1 line
through Cisco 3620.. i have problems with DTMF.. My other phones ATCOM and
Cisco work well.. i am thinking probably i need to change my whole polycomms
to use G711u unlike G729 which i am using right now. i did change my
extensions in sip.conf to inband and rfc2833 on asterisk box and verified
still it did not work...
 so probably the other solution would be to change the dtmf tag on polycomms
conf file to inband
 please suggest me if this is a good idea?? or is there any other
solution...
if this is what i should do please suggest me the appropriate changes in the
tag below for polycomms to operate with inband
 <DTMF tone.dtmf.level="-15" tone.dtmf.onTime="50"
tone.dtmf.offTime="50"
tone.dtmf.chassis.masking="0"
tone.dtmf.stim.pac.offHookOnly="0"
tone.dtmf.viaRtp="1" tone.dtmf.rfc2833Control="1"
tone.dtmf.rfc2833Payload"101"/>
  thanks
krishna




 On 11/7/05, Doug <Doug@natel.net> wrote:
>
> At 15:36 11/7/2005, Krishna Sumanth Chava wrote:
> >hi,
> >
> >Would like to have help in fixing the DTMF problem i am facing on
> Polycomm
> >Soundpoint IP Phones
> >
> >I am having the following network setup..
> >
> >I have my Asterisk PBX server connected to the Cisco 3620 Router with
an
> >ethernet cable which inturn is connected with a T1 circuit to my SIP
> >Provider..
> >
> >i have DTMF working on the Cisco 7940 phones but have problems with
> >working on Polycomms.. i am using G711u codec.
> >
> >Will Appreciate your help if you can give me some comments and
> suggestions..
>
>
> No problems here with Polycom 501s. Using rfc2833 in "extensions"
> in Asterisk. Changing to "inband" sometimes helps.
>
> What are your other settings?
>
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Hey All,
    I have a polycomm IP600 that about 30-50% of the time continues to 
ring after asterisk has signaled an answer.  Has anyone else experienced 
this?
Thanks
-Matt