24 Jul
2006
24 Jul
'06
7:17 p.m.
İlker Aktuna (Koç.net) wrote:
Hi,
Thanks for the information.
Actually, I downloaded it but couldn't find how to export rtp payload.
Does rtpdump read capture files recorded with Ethereal/tcpdump ?
(in which format should I save the file?)
Btw, there is a Windows sniffer named "Cain & Abel" this one decodes g729.
Thanks,
ilker
First you export the RTP data from within Ethereal like this:
1. Open Capture
2. Click on Analyze->Statistics->RTP Streams->Show All
3. Select the stream you want to export
4. Click 'Save As'
5. Then feed that file into rtpdump like the below example 'trace.rtp'.
Here is the command line:
rtpdump -F payload -f trace.rtp -o file.out
file.out will contain just the payload which can then be decoded.
-----Original Message-----
From: Andres [mailto:andres@telesip.net]
Sent: Friday, July 21, 2006 10:53 PM
To: İlker Aktuna (Koç.net)
Cc: serusers(a)iptel.org
Subject: Re: [Serusers] decoding g729 encoded rtp streams
İlker Aktuna (Koç.net) wrote:
--
Andres
Technical Support
http://www.telesip.net
Hi,
I know that there are licence and patent issues but is it possible to
decode g729 encoded rtp streams with any software ?
I have licenced Eybeam softphone with g729 support. But it can only
decode streams in a conversation.
I just need to decode streams recorded with tcpdump/ethereal.
Once I had used a software with this feature but then it turned out to
be a trojan. I don't remember the name now.
Is there any other software ? (or method using Eyebeam ?)
Thanks,
ilker
You can download the decoder from:
http://www.voiceage.com/openinit_g729.php
Then capture the RTP Stream with Ethereal and export the Payload
(using rtpdump from http://www.cs.columbia.edu/IRT/software/rtptools/).
You can then decode it with the above software.
<http://387555.sigclick.mailinfo.com/sigclick/010A0707/07074F00/0602084E/0012202223.jpg>
_____________________________________________________________________________________________________________________________________________
Bu e-posta mesaji kisiye ozel olup, gizli bilgiler iceriyor olabilir.
Eger bu e-posta mesaji size yanlislikla ulasmissa, icerigini hic bir
sekilde kullanmayiniz ve ekli dosyalari acmayiniz. Bu durumda lutfen
e-posta mesajini kullaniciya hemen geri gonderiniz ve tum
kopyalarini mesaj kutunuzdan siliniz. Bu e-posta mesaji, hic bir
sekilde, herhangi bir amac icin cogaltilamaz, yayinlanamaz ve para
karsiligi satilamaz. Bu e-posta mesaji viruslere karsi anti-virus
sistemleri tarafindan taranmistir. Ancak yollayici, bu e-posta
mesajinin - virus koruma sistemleri ile kontrol ediliyor olsa bile -
virus icermedigini garanti etmez ve meydana gelebilecek zararlardan
dogacak hicbir sorumlulugu kabul etmez.
This message is intended solely for the use of the individual or
entity to whom it is addressed , and may contain confidential
information. If you are not the intended recipient of this message or
you receive this mail in error, you should refrain from making any use
of the contents and from opening any attachment. In that case, please
notify the sender immediately and return the message to the sender,
then, delete and destroy all copies. This e-mail message, can not be
copied, published or sold for any reason. This e-mail message has been
swept by anti-virus systems for the presence of computer viruses. In
doing so, however, sender cannot warrant that virus or other forms
of data corruption may not be present and do not take any
responsibility in any occurrence.
_____________________________________________________________________________________________________________________________________________
_____________________________________________________________________________________________________________________________________________
Bu e-posta mesaji kisiye ozel olup, gizli bilgiler iceriyor olabilir.
Eger bu e-posta mesaji size yanlislikla ulasmissa, icerigini hic bir
sekilde kullanmayiniz ve ekli dosyalari acmayiniz. Bu durumda lutfen
e-posta mesajini kullaniciya hemen geri gonderiniz ve tum
kopyalarini mesaj kutunuzdan siliniz. Bu e-posta mesaji, hic bir
sekilde, herhangi bir amac icin cogaltilamaz, yayinlanamaz ve para
karsiligi satilamaz. Bu e-posta mesaji viruslere karsi anti-virus
sistemleri tarafindan taranmistir. Ancak yollayici, bu e-posta
mesajinin - virus koruma sistemleri ile kontrol ediliyor olsa bile -
virus icermedigini garanti etmez ve meydana gelebilecek zararlardan
dogacak hicbir sorumlulugu kabul etmez.
This message is intended solely for the use of the individual or
entity to whom it is addressed , and may contain confidential
information. If you are not the intended recipient of this message or
you receive this mail in error, you should refrain from making any use
of the contents and from opening any attachment. In that case, please
notify the sender immediately and return the message to the sender,
then, delete and destroy all copies. This e-mail message, can not be
copied, published or sold for any reason. This e-mail message has been
swept by anti-virus systems for the presence of computer viruses. In
doing so, however, sender cannot warrant that virus or other forms
of data corruption may not be present and do not take any
responsibility in any occurrence.
_____________________________________________________________________________________________________________________________________________