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Finding DTMF type

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I have a Wireshark capture with DTMF tones send. With rtpevent I can see the tones typed. I would like to find their type (inband, outband, RFC2833). Where can is see it?

atux_null's avatar
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atux_null
asked 2019-07-02 13:39:54 +0000
Jaap's avatar
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Jaap
updated 2019-07-02 16:01:58 +0000
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The fact that you see RTP events tells me that the DTMF tones are transferred by means of RFC 2833, or rather RFC 4733. Wether or not tones are also injected into the audio stream is for you to tell, they could both be there.

Jaap's avatar
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Jaap
answered 2019-07-02 16:06:57 +0000
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delayed answer, but in my case when i type

rtpevent

in the filter, i see the

RFC 2833 RTP EVENT

So this is the type

atux_null's avatar
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atux_null
answered 2021-08-10 06:19:53 +0000
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