[SIPForum-discussion] Should I use SIP server or Proxy?

[Rodrigo Pimenta Carvalho]

Dear SIP-users.

I'm starting in a project that it will be necessary to build an application able to read attribute-values from the SDP within SIP 183 messages.
At the beginning, I was studying about Asterisk to see if such tool allows me to sniff a SDP body. Asterisk acts as a SIP server.
Then, I saw on Internet that I should use a SIP proxy, because it would give me the flexibility that I need, to get any information from a SDP body of a SIP 183 message. So i ask:

1 - Is a SIP Proxy the best element able to provide information about a SDP body from a SIP message?

2 - If yes, is there some SIP Proxy open project that I would try?

3- If not, does someone here have already developed an application with such capability? If yes, how it was done in terms of architecture?

Any hint will be very helpful!

Best regards.

RODRIGO PIMENTA CARVALHO
Inatel Competence Center
Software
Ph: +55 35 3471 9200 RAMAL 979     (Brasil)