Folks,
Does anyone have a good idea about how routing to voicemail is actually
done in practice? It seems there are several ways of doing it and I'm
curious if there is one "standard" way.
For example, one way is to do it at the SDP level and simply have the
UAS advertize the voicemail server as the IP address to talk to.
RFC 4458 provides several way to do this, but 4458 is Informational.
Is 4458 the right way, if not, is 4458 as good as any, etc.
Here's the call flow from Section 6.2, "Endpoint Forwards
Busy to Voicemail":
Alice Proxy Bob voicemail
| | | |
| INVITE F1 | | |
|--------------->| INVITE F2 | |
| |------------->| |
| | 302 Moved F3 | |
| 302 Moved F4 |<-------------| |
|<---------------| | |
| ACK F5 | | |
|--------------->| ACK F6 | |
| |------------->| |
| INVITE F7 |
|-------------------------------------------------->|
Thanks,
-Erich
--
Erich M. Nahum IBM T.J. Watson Research Center
Research Staff Member P.O. Box 704
[EMAIL PROTECTED] Yorktown Heights NY 10598
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