We are having a similar experience and found that our numbers that were ported through Level3 were not transmitting DTMF reliably . The solution was to have our provider port them through Peatec. Hope that helps.. Jack On 8/1/2013 11:29 AM, baskar wrote:

Hi All,

Our current existing set up has three different SIP service providers and all three were working fine, but all of a sudden on one of our SIP service provider we started to have DTMF issues. We followed up with the problematic service provider and they kept saying that there is no issue at their end, now we have connected the non working SIP link to our test server and we are not having any DTMF issues while using it on the test server. I have attached log on pastebin.

Freeswitch Live server log http://pastebin.com/mQ27rDts

Freeswitch test server log http://pastebin.com/4BEeUcSu

Please some one help me to resolve this issues.

Thanks, N.Baskar

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