[asterisk-users] DTMF issues/redial tones with rfc2833

[das sandesh]

Thanks Zeeshan.....that server is located at the headquaters and phones are
at different locations, even with default rfc2833 mode, other party IVR
prompts was not able to detect the tones, also 'Info' works good but not
with internal options like voicemail, etc. And inband is not being used as
we are using few g729 calls......Origination source of incoming calls would
be from outside numbers.....and we have one non sip device FXS router that
handles the fax, but  its not related to the voice packets.......

On Thu, Jul 8, 2010 at 3:42 PM, Zeeshan Zakaria <zishanov at gmail.com> wrote:

> From what you explained, it seems obvious that there exists some non-SIP
> device somewhere in your communication path, and since voice is picked up as
> DTMF, some device is also set to listen for inband DTMF.
>
> What is the origination source of incoming calls to your system?
>
> Zeeshan A Zakaria
>
> --
> www.ilovetovoip.com
>
> On 2010-07-08 4:24 PM, "das sandesh" <sandesh440 at gmail.com> wrote:
>
> Hi,
>
> We have few systems with asterisk 1.4.22.1 and we use sip trunking for them
> not PRI's, one of our system is giving a problem of dtmf (rfc2833), like
> when we dial the number that have IVR and enter the extension or access
> code, it some time takes it and some times does'nt recognize the digits
> dialled. We also tried auto and info for dtmf but could not get the dtmf to
> work reliably, can any one share your thoughts on this, also asterisk
> version should not be a problem as we have other servers with same version
> and dtmf work good.......Aslo since we also use g729 for some extensions we
> did not inband....
>
> Also recently we got one more issue in this server, that as we talk on the
> phone randomly we get redial dtmf tones during the conversation, this
> suddenly started happening as this was good few months back........I tried
> researching but could not find any ideas in regards to why this tones are
> coming into picture......I really appreciate if anyone can share their
> thoughts in regards to this......
>
> Thank you very much
>
> Regards
> Sandesh
>
> --
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