[asterisk-users] DTMF Problem

[木木]

I think you haven't capture the packet from the beginning of the call.

You must capture the SIP packets. And the wireshark will recognise the packets as RTP.




木木
2007-11-16



发件人： Benjamin Jacob
发送时间： 2007-11-16 12:55:51
收件人： Asterisk Users Mailing List - Non-Commercial Discussion
抄送： 
主题： Re: [asterisk-users] DTMF Problem

for UDP
tcpdump -nnXs 0 udp -i eth0 -w name.cap

Btw, a pcap file (created on a linux server using tcpdump) capturing the 
RTP(udp) traffic opened up in wireshark, wireshark doesn't really 
format(or recognize) the packets as RTP, unlike the capture done live 
from a wireshark configured to capture RTP traffic.
In the former, wireshark shows up everything as UDP and I have to do a 
lot of manual parsing to find out the type etc in the packets captured.

Am I missing some config on wireshark here?

TiA
- Ben.

ľľ wrote:

> You can use the tcpdump comand in linux.
> Like: tcpdump -i eth0 -s 0 -w name.cap
> And you can open the cap file useing wireshark that is a good
> ------------------------------------------------------------------------
> 木木
> 2007-11-16
> ------------------------------------------------------------------------
> *发件人：* Doug
> *发送时间：* 2007-11-16 00:53:15
> *收件人：* Asterisk Users Mailing List - Non-Commercial Discussion; 
> Asterisk Users Mailing List - No
> *抄送：*
> *主题：* Re: [asterisk-users] DTMF Problem
> At 06:42 11/15/2007, =?gb2312?B?xL7Evg==?= wrote:
>  >Hi，
>  >
>  >Could you capture the the UDP package
> How is this done?
>  >in all of your server, Asterisk A, Asterisk B, ser, Asterisk C.
>  >And you can find that server who lost the DTMF (RTP EVENT).
>  >
>  >
>  >----------
>  >Amy
>  >2007-11-15
>  >
>  >----------
>  >发件人： Arun Kumar
>  >发送时间： 2007-11-15 20:30:45
>  >收件人： Asterisk Users Mailing List - Non-Commercial Discussion; SER 
> Users
>  >抄送：
>  >主题： [asterisk-users] DTMF Problem
>  >
>  >Hi
>  >
>  >Here is my setup:
>  >
>  >USER ------  > PSTN -----  > Asterisk A ----  > IAX2 Trunk ----  > Asterisk
>  >B ---------  > SER --------  > Asterisk C
>  >
>  >I'm not able to receive DTMF passed by USER on Asterisk C.
>  >
>  >All my asterisk boxs are configured with same DTMF type (auto) but no 
> luck.
>  >
>  >Please help on this issue.
>  >
>  >
>  >Thanks,
>  >
>  >Arun
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