[Serusers] SER proxy and Asterisk features

Yves De Serres ydeserres at raris.net
Tue Mar 22 20:02:52 CET 2005


I am involved in a new deployment of the famous SER and Asterisk tandem.
The goal is to use SER as a SIP proxy (what it is) and Asterisk as an IP-PBX
(connection to PSTN and voicemail).
We plan to make extensive use of WiFi phones.

I begin to have "some" understanding of the interplay between SER and
Asterisk, especially when it comes to handle
calls to/from the PSTN as well as transfers to voicemail.

On the other hand, I keep stumbling on the following question:
Besides handling voicemail and interconnection to PSTN, Asterisk offers many
of the traditional PBX features
(for example CallWaiting activated by hookflash or *64 for DoNotDisturb).
For SIP to SIP calls handled solely by SER (unless I am mistaken), how are
these features invoked (or activated)?
What kind of messaging goes on when hookflash or *xx is activated on the
phone?
What are the respective roles and responsibilities of SER and Asterisk in
handling such messaging?

Regards

Yves DeSerres (ydeserres at raris.net)
Raris Communications






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