[asterisk-users] DTMF Problem

Benjamin Jacob benjamin.jacob at mgl.com
Thu Nov 15 22:39:17 CST 2007


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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