[asterisk-dev] Asterisk-11 DTMF bug ?

[Mark Murawski]

So... more information.

directmedia=no
directrtpsetup=no

In this situation below, asterisk is the B2BUA.  Call comes in from 
Polycom, then gets routed out to ITSP via Dial()

When the polycom directly calls into dialplan that handles media, 
asterisk *does* process the DTMF
ie: Polycom calls into Read()

[2017-04-04 17:21:41.557] [C-0000175d]  Got  RTP RFC2833 from          
10.0.90.6:8110 (type 101, seq 016608, ts 3618850425, len 000004, mark 1, 
event 00000003, end 0, duration 00160)



On 04/04/2017 04:52 PM, Mark Murawski wrote:
> Er, small correction.  Asterisk clearly shows RTP *flowing*, but not 
> receiving DTMF from 10.0.90.6
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> On 04/04/17 16:37, Mark Murawski wrote:
>> Hey,
>>
>> So, I'm seeing an issue where a Polycom IP-550 with 4.1.1 firmware is
>> sending RFC2833 DTMF packets as shown in the capture attached. I can
>> send pcaps as necessary, if needed.
>>
>> 10.0.90.6 is the Polycom 10.0.90.1 is Asterisk.
>>
>> So of course you do:
>>> rtp set debug 10.0.90.6
>>
>> And then get the below, while the polycom is sending digits. The packet
>> capture clearly shows DTMF going to 10.0.90.1, but Asterisk is not
>> picking them up.
>>
>> [2017-04-04 14:14:18.830] VERBOSE[21403][C-00001424] res_rtp_asterisk.c:
>> [2017-04-04 14:14:18.830] [C-00001424] Sent RTP P2P packet to
>> 10.0.90.6:2242 (type 00, len 000160)
>> [2017-04-04 14:14:18.850] VERBOSE[21403][C-00001424] res_rtp_asterisk.c:
>> [2017-04-04 14:14:18.850] [C-00001424] Sent RTP P2P packet to
>> 10.0.90.6:2242 (type 00, len 000160)
>> [2017-04-04 14:14:18.870] VERBOSE[21403][C-00001424] res_rtp_asterisk.c:
>> [2017-04-04 14:14:18.870] [C-00001424] Sent RTP P2P packet to
>> 10.0.90.6:2242 (type 00, len 000160)
>> [2017-04-04 14:14:18.890] VERBOSE[21403][C-00001424] res_rtp_asterisk.c:
>> [2017-04-04 14:14:18.890] [C-00001424] Sent RTP P2P packet to
>> 10.0.90.6:2242 (type 00, len 000160)
>> ...
>> [2017-04-04 14:14:22.210] VERBOSE[21403][C-00001424] res_rtp_asterisk.c:
>> [2017-04-04 14:14:22.210] [C-00001424] Sent RTP P2P packet to
>> 10.0.90.6:2242 (type 00, len 000160)
>> [2017-04-04 14:14:22.230] VERBOSE[21403][C-00001424] res_rtp_asterisk.c:
>> [2017-04-04 14:14:22.230] [C-00001424] Sent RTP P2P packet to
>> 10.0.90.6:2242 (type 00, len 000160)
>> [2017-04-04 14:14:22.250] VERBOSE[21403][C-00001424] res_rtp_asterisk.c:
>> [2017-04-04 14:14:22.250] [C-00001424] Sent RTP P2P packet to
>> 10.0.90.6:2242 (type 00, len 000160)
>> [2017-04-04 14:14:22.270] VERBOSE[21403][C-00001424] res_rtp_asterisk.c:
>> [2017-04-04 14:14:22.270] [C-00001424] Sent RTP P2P packet to
>> 10.0.90.6:2242 (type 00, len 000160)
>>
>>
>> I am running 11.20 on this particular box, for some specific reasons.
>> I'm currently working out some other issues with the newer/latest 11's,
>> so I'm on this for now.
>>
>> Before I start digging into the code, are there any known issues with
>> DTMF/RFC2833 in this version?  Any workarounds I can implement?
>>
>>
>>
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