[SIPForum-discussion] Call Forward Unconditional How Proxy Knows that call needs to forward to a Gateway?
Michael Scofield
amit.chhikara at hotmail.com
Mon Sep 17 14:10:24 UTC 2012
Alice Proxy Gateway
| | |
| INVITE F1 | |
|--------------->| |
|(100 Trying) F2 | |
|<---------------| |
| (181 Call Is Being Forwarded) F3
|<---------------| INVITE F4 |
| |------------->|
| |180 Ringing F5|
| 180 Ringing F6 |<-------------|
|<---------------| 200 OK F7 |
| 200 OK F8 |<-------------|
|<---------------| |
| ACK F9 | |
|--------------->| ACK F10 |
| |------------->|
| Both way RTP Established |
|<=============================>|
| BYE F11 | |
|--------------->| BYE F12 |
| |------------->|
| | 200 OK F13 |
| 200 OK F14 |<-------------|
|<---------------| |
| | |
I have following doubts regarding this Service Example:
1)Alive is calling Bob,but call is forwarded to gateway,So how proxy came to know where i need to forward this request?
2)How proxy is re-writing the Request-URI to the gateway URI?
Thanks & Regards,
Michael
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