Hi Nahum,

that reply was not created by Kamailio - unless you have some custom
code in your config.
It seems, that one device is trying to use SIP INFO for DTMF, while
the other end is not supporting this. Probably you should check, that
both ends support the same method for DTMF.

Thanks,
Carsten

2016-12-12 19:15 GMT+01:00 Nahum Nir <hello.shalom.hi@gmail.com>:
> Thank you. I did try and got an error from the server:
>
> INFO sip:6002@5.x.x.x:41896;ob;alias=5.x.x.x~41896~1 SIP/2.0
> Via: SIP/2.0/UDP
> 5.x.x.x:5060;rport;branch=z9hG4bKPjd838dff2-7492-4b81-a18f-cb2750f4c6f2
> Max-Forwards: 70
> From: <sip:7200@9.Y.Y.Y>;tag=79d90eb1-6b55-4600-8e42-b0283b7c115a
> To: <sip:6002@9.Y.Y.Y>;tag=S6jNGwLYM0x0ShFODnT1DJoEzolO.8C5
> Call-ID: 62TGJkeBkGxkxO.2O1OWIHY92UbtzV2y
> CSeq: 28826 INFO
> Route: <sip:9.Y.Y.Y;lr>
> Content-Type: application/dtmf-relay
> Content-Length:    22
>
> Signal=8
> Duration=160
>
>
> SIP/2.0 500 Unhandled by dialog usages
> Via: SIP/2.0/UDP
> 5.x.x.x:5060;rport=5060;received=5.x.x.x;branch=z9hG4bKPjd838dff2-7492-4b81-a18f-cb2750f4c6f2
> Call-ID: 62TGJkeBkGxkxO.2O1OWIHY92UbtzV2y
> From: <sip:7200@9.Y.Y.Y>;tag=79d90eb1-6b55-4600-8e42-b0283b7c115a
> To: <sip:6002@9.Y.Y.Y>;tag=S6jNGwLYM0x0ShFODnT1DJoEzolO.8C5
> CSeq: 28826 INFO
> Content-Length:  0
>
>
> On Mon, Dec 12, 2016 at 2:04 PM, Olle E. Johansson <oej@edvina.net> wrote:
>>
>>
>> On 12 Dec 2016, at 13:00, Nahum Nir <hello.shalom.hi@gmail.com> wrote:
>>
>> Thanks Olle. My cfg does not even has INFO anywhere. Will appreciate very
>> much an example.
>>
>> Why don’t you test? Only special cases are mentioned and INFO in dialog is
>> handled as any
>> in-dialog message.
>>
>> /O
>>
>>
>> On 11 Dec 2016 16:12, "Olle E. Johansson" <oej@edvina.net> wrote:
>>>
>>>
>>> On 11 Dec 2016, at 08:20, Nahum Nir <hello.shalom.hi@gmail.com> wrote:
>>>
>>> :) Thanks, any hints/examples?
>>>
>>> The standard kamailio konfiguration supports it by default.
>>>
>>> /O
>>>
>>>
>>> On Sat, Dec 10, 2016 at 10:41 PM, Alex Balashov
>>> <abalashov@evaristesys.com> wrote:
>>>>
>>>> On Sat, Dec 10, 2016 at 09:07:09PM +0200, Nahum Nir wrote:
>>>>
>>>> > I tried Googling but didn'tfind anything.
>>>> > Is it possible to support DTMF using INFO?
>>>>
>>>> Sure, absolutely. :-)
>>>>
>>>> --
>>>> Alex Balashov | Principal | Evariste Systems LLC
>>>>
>>>> Tel: +1-706-510-6800 (direct) / +1-800-250-5920 (toll-free)
>>>> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>>>>
>>>> _______________________________________________
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>>>
>>>
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>
>
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