[Freeswitch-users] Unreliable DTMF

[Alex Lake]

Interesting idea, but I don't think so. Will check...
> The model of cellphone should be irrelevant for these types of issues.
> However, different cellular networks handle DTMF differently. If you see
> different results with different phones, is it because they are on
> different networks.
>
> Regards,
> Steve
>
> On 07/25/2013 09:33 PM, Alex Lake wrote:
>> I've got an application that doesn't seem to work well with DTMF coming
>> in (supposedly using rfc2833) from some phones - notably Samsung S3s.
>>
>> I have told my carrier to use rfc2833.
>> I have put dtmf-type="rfc2833" into my SIP profile.
>>
>> I see "a=fmtp:101 0-16" in the session progress message
>>
>> I was wondering what this message "Activate Buggy RFC2833 Mode" means!
>>
>> When a normal user hits a DTMF key, we get this in the log:
>>
>> 2013-07-25 13:26:19.308267 [DEBUG] switch_rtp.c:3917 RTP RECV DTMF 1:744
>> 2013-07-25 13:26:19.308267 [DEBUG] switch_channel.c:471 RECV DTMF 1:744
>>
>> Does this all indicate that rfc2833 is working?!
>>
>> Anyone else had trouble with S3s?
>>
>>
>
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