[Freeswitch-users] fyi - DTMF with FlowRoute

[Nathan Neulinger]

FlowRoute Ticket 212706 is open and being investigated after providing the captures.

Since it's so easy to reproduce, if they need additional captures/tests - will get them.

-- Nathan

On 01/25/2016 01:50 PM, Justin Grow wrote:
> I'm curious how we are handling the multiple sample rates offered for DTMF. If you can open up a ticket at
> support.flowroute.com, and run a few test calls for us to capture, we'll get to the bottom of it.
>
>
>
> On Mon, Jan 25, 2016 at 11:31 AM Nathan Neulinger <nneul at mst.edu> wrote:
>
>     I know this has been brought up previously in another thread, but wanted to mention I'm seeing it as well. However - I
>     do have an additional data point.
>
>     This is the SDP being sent:
>
>          v=0
>          o=FreeSWITCH 1453729420 1453729421 IN IP4 131.151.x.x
>          s=FreeSWITCH
>          c=IN IP4 131.151.x.x
>          t=0 0
>          m=audio 19222 RTP/AVP 102 103 9 0 8 104 106 101
>          a=rtpmap:102 G7221/32000
>          a=fmtp:102 bitrate=48000
>          a=rtpmap:103 G7221/16000
>          a=fmtp:103 bitrate=32000
>          a=rtpmap:9 G722/8000
>          a=rtpmap:0 PCMU/8000
>          a=rtpmap:8 PCMA/8000
>          a=rtpmap:104 telephone-event/32000
>          a=fmtp:104 0-16
>          a=rtpmap:106 telephone-event/16000
>          a=fmtp:106 0-16
>          a=rtpmap:101 telephone-event/8000
>          a=fmtp:101 0-16
>          a=ptime:20
>
>     I realize that anything other than PCMU is pointless with flowroute. Symptom is seen on both 1.4 and 1.6.
>
>     Confirming what some others on the thread have said - forcing codec to PCMU (in my case via carrier_gateway lcr table),
>     immediately corrects the issue. It seems like a definite bug on flowroute's side, and will be following up with that on
>     the open case.
>
>     -- Nathan
>
>     ------------------------------------------------------------
>     Nathan Neulinger nneul at mst.edu <mailto:nneul at mst.edu>
>     Missouri S&T Information Technology    (573) 612-1412
>     System Administrator - Architect
>
>     _________________________________________________________________________
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>
> Justin Grow
> Operations
>
> 	
> <https://links.mixmax.com/b/2FSZu0eMXlzti9F0W?rn=ICcsVGSgMnclNXVgg0QUl0VTVWZyZkI&re=icmcv5CajRXa3NXZlJnZuMHdzlGbANnclNXdtg2Y0l2dzVWZyZmI>
>
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>
> jgrow at flowroute.com
> <https://links.mixmax.com/b/RsR2zxsh3vymbJ32a?rn=ICcsVGSgMnclNXVgg0QUl0VTVWZyZkI&re=icmcv5CajRXa3NXZlJnZuMHdzlGbANnclNXdtg2Y0l2dzVWZyZmI>
>
>
>
>
>
> _________________________________________________________________________
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>
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>
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-- 
------------------------------------------------------------
Nathan Neulinger                       nneul at mst.edu
Missouri S&T Information Technology    (573) 612-1412
System Administrator - Architect