[asterisk-users] dtmf_2833_1.pcap: what PCM codec? ulaw or alaw?

[Kevin P. Fleming]

On 03/30/2011 08:02 PM, cajsdy wrote:
> thanks. opened with wireshark and it's clearly show the format, digits.
>
> another question: each pcap has multiple frames, each frame has digit,
> volume 10, and duration. why it has more than one frame? would not it
> send multiple digit each pcap?

Please go read RFC 2833 or RFC 4733; they explain how digits are sent 
over RTP.

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Kevin P. Fleming
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