[Freeswitch-users] DTMF Problems! In-band detection patchy, rfc2833 not working!

Sidharth Kshatriya sid.kshatriya at gmail.com
Tue May 24 14:29:25 MSD 2011


Thanks for your reply, Michael. I have tried doing a start dtmf but then
I've noticed:

1.  My skype key presses get unreliable...
2. The dtmf detection is patchy with inband -- works sometimes and doesn't
work sometimes :-)

Any settings to keep in mind apart just adding a start dtmf ?

Thanks,

Sidharth

On Mon, May 23, 2011 at 8:54 PM, Michael Collins <msc at freeswitch.org> wrote:

> Sidharth,
>
> A mobile phone will always send DTMFs in-band, so you need to be ready for
> that scenario. I recommend you add this to your dialplan for inbound calls:
> http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_start_dtmf
>
> Test various scenarios and make sure they work - call from Skype, from
> mobile phone, from a land line, etc. Let us know what happens.
>
> -MC
>
>  On Sat, May 21, 2011 at 1:11 AM, Sidharth Kshatriya <
> sid.kshatriya at gmail.com> wrote:
>
>>  Dear Friends,
>>
>> I'm using a voip carrier Voicenetwork.ca (recommended by someone on this
>> list). While I'm generally happy with their service there seems to be one
>> fatal problem: My IVR does not recognize DTMF!
>>
>> I have set <param name="dtmf-type" value="rfc2833"/> in both
>> sip_profile/internal.xml and sip_profile/external.xml
>>
>> The symptom of the problem is that making a call via skype will *always*make the IVR recognize the DTMF while using something like a mobile phone
>> *almost always* won't!
>>
>> I've tried in-band detection too. I'm making international calls into my
>> IVR and the reliability of the in-band detection is not so good, possibly
>> because of the quality of the call.
>>
>> Can someone please help me?
>>
>> Thanks,
>>
>> Sidharth
>>
>> --
>> Sidharth Kshatriya
>> www.sidk.info
>>
>>
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>
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-- 
Sidharth Kshatriya
www.sidk.info
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