[SIPForum-discussion] RFC2833 dtmf with inband dtmf

[Abinash Sarangi]

are they using sonus nbs if i am not wrong..inbound and outbound PSPs are the things they can tweak for sure and thats what they are doing..inband tones anyway consure more CPU..also depends on the media servers and call servers what they expect whether inband or RFC2833..

Thanks

-Abinash 


Date: Thu, 13 Dec 2012 00:04:20 -0700
From: tod.higman at gmail.com
To: ccurry at telovations.com
CC: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] RFC2833 dtmf with inband dtmf

Level 3 sending both tones and 2833 has caused problems for my customers in the past, primarily with voice mail retrieval.  I was able to get L3 to suppress the tones for me by modifying their PSP on the NBS (I think).

On Dec 12, 2012 8:40 PM, "Chet Curry" <ccurry at telovations.com> wrote:

I have searched the RFC's but I have not found the answer to my question.
Is it normal to transmit inband dtmf (audio frequencies) while also using RFC 2833 DTMF events?
I am receiving calls from Level 3 with both being used. 


-- 
Chet Curry
Sr. Network Architect 



   1410 N. West Shore Blvd. Ste. 700 Tampa, FL 33607

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  ccurry at telovations.com

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