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Format of SS7 data

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hoangsonk49
Format of SS7 data

Hi all ,
I captured from SCP of Intelligent Network, I see only the data of UDP instead of CAMEL (as I expect).

"Data: 0304010401000001b500a60000011200000a529200120448..."

I think this is the decoded message of CAMEL (initDP, release call...) but now it is shown as UDP format with the field name on wireshark is "data.data". It looks similar to this one: http://www.wireshark.org/download/automated/captures/fuzz-2014-03-13-203...

With your experience on this help, I hope that you could help me to show the format of this data or how to decode this sequence in order to have a clear message.
Thanks so much!

sangamesh
sangamesh's picture
UDP Messages captured in the

UDP Messages captured in the trace are because of the transport chosen by SIP message transactions, these can be decoded in a usual way of decoding any other TCP/UDP messages by listening to the specific port which SIP host does internally. Its just a byte[] payload.

Sangamesh R H
Telecom Consultant

sangamesh
sangamesh's picture
Also you can refer to RFC3261

Also you can refer to RFC3261 http://www.ietf.org/rfc/rfc3261.txt

Sangamesh R H
Telecom Consultant