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

[Kevin P. Fleming]

On 03/30/2011 10:46 AM, cajsdy wrote:
> Hi everybody,
> got it from svn:
>
>
> dtmf_2833_1.pcap
>
> //asterisk/trunk/tests/rfc2833_dtmf_detect/configs/extensions.conf PRE-CREATION
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/configs/sip.conf PRE-CREATION
>
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/run-test PRE-CREATION
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/broken_dtmf.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/broken_dtmf.xml PRE-CREATION
>
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_1.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_1_noend.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_2.pcap UNKNOWN
>
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_2_noend.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_3.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_3_noend.pcap UNKNOWN
>
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_4.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_4_noend.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_5.pcap UNKNOWN
>
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_6.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_7.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_8.pcap UNKNOWN
>
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_9.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_pound.pcap UNKNOWN
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_2833_star.pcap UNKNOWN
>
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_baseline.xml PRE-CREATION
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/dtmf_noend.xml PRE-CREATION
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/sipp/register.xml PRE-CREATION
>
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/test-config.yaml PRE-CREATION
> />/    /asterisk/trunk/tests/rfc2833_dtmf_detect/test.lua PRE-CREATION
> /
>
>
>
> wonder what's the PCM coding format within these captures? ulaw or alaw?
> I'm looking for alaw captures.

Since they are packet captures of RTP frames, the RTP payload numbers in 
the frames will indicate what format they contain. Have you opened the 
files with Wireshark or any other tool that can interpret PCAP files?

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype: kpfleming
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