[Asterisk-Users] inband dtmf on ploycom ip501?

[Damon Estep]

Will try it, no matching web setting I assume?

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Chris Miller
> Sent: Tuesday, November 01, 2005 12:23 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] inband dtmf on ploycom ip501?
> 
> Damon Estep wrote:
> > Anyone have any hints on how to get the polycom ip501 to send dtmf
> > inband, our upstream providers require inband and the native rfc2833
> > format of the polycom does not work.
> 
> In order for inband to make it beyond Asterisk, you need to disable
> rfc2833 control in the Polycom config file "sip.cfg" (i.e. via ftp
> server).
> 
> tone.dtmf.rfc2833Control="0"
> 
> It appears that although Asterisk recognizes and uses inband dtmf
> internally, rfc2833 is used on the external channel. I noticed this
> behavior when remote IVR systems weren't acknowledging dtmf.
> 
> Regards,
> 	Chris
> 
> Chris Miller
> President - Rocket Scientist
> ScratchSpace Inc.
> (831) 621-7928
> http://www.scratchspace.com
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