Response embedded in your email query. On 9/27/05, Rodrigo Pimenta Carvalho <[EMAIL PROTECTED]> wrote: > 1) How can a Proxy finds another one? That is, when a proxy A needs to > redirect an INVITE request to other proxy B, how can A know the location of > B?
If it knows for sure to contact proxy B, then it can locate it using DNS lookups. A redirect server is used to find out which proxy to send to. > 2) If I had an IP Phone (software) that uses SIP, where would be the > Registrar when I register my contact via such Phone? That is, the Registrar > would be in my machine or in some place on Internet?? Your SIP server (UAS) will know where the registrar is. A SIP server itself can be a Registrar, or it may have an extrenal one. All this is transperent to the end user. They will just register with the SIP server. > 3) Could I contact to any proxy from any location or application, by > means of new SIP software, if I implement a new one? If not, why? If I interpret your question correctly, then answer is provided you are provisioned on all those servers that you want to register. > 4) If I install a IP Phone (one that uses SIP) in 2 different > machines, and If I register my contact in just one machine, could I use the > IP Phone by the other machine without registering me again? NO! They will have different IP Addresses. And your SIP server will need to support a feature like shared calling in order to support it "properly". > 5) After finishing a signaling session, via SIP, does the user's talk > (VoIP) pass through the same path used by the signaling request messages? If > yes or not, why? Depends on how you want to configure. Media path can be configured such that its between the SIP endpoints or UA and Gateway or even via a media server to intercept traffic. hth -r _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
