At 02:21 PM 12/4/2002, Igor Vasiliev wrote:
You can try to use some existing B2BUA implementation. You can use SER along with B2BUA too -- they interact using SIP. You just need to set SIP routing accordingly to your scenario.
Problem of my understanding is here. How should I redirect requests?
Requests are redirected in SER using sl_send_reply with a 3xx code in it. That has nothing to do with B2BUAs, though.
You can proxy requests too -- again, how you route them depends on what you want to accomplish. For example, you can look at URIs and route all requests with nummerical usernames to a B2BUA, whereas everything else will be routed using a user location database. There are really no limits on what your routing policy may be.
From SER to B2BUA?
Please give me an example of their interaction.
http://www.iptel.org/ietf/callprocessing/apps/draft-rosenberg-sipping-app-in... and http://www.iptel.org/ietf/callprocessing/apps/draft-rosenberg-sip-app-compon... give examples of server interactions.
Could I use B2BUA without SER(and without any SIP proxy)?
Yes. There is BTW many other things which you can do without any SIP proxy -- skiing, playing chess, having phone conversation, and many more.
-Jiri