What you describe already works as you suggested today, BYE messages
are sent automatically by call_control and mediaproxy modules in
various cases. Did you test and it did not work for you?
Regards,
Adrian
On May 6, 2009, at 10:22 PM, Iñaki Baz Castillo wrote:
Hi, MediaProxy can account the end of a "broken" session (after X
secons from
the loss of RTP). This is done via Radius or MySQL directly from
MediaProxy,
but the still alive endpoint doesn't receive a BYE.
In real life, when talking from my mobile to other (GSM network), if
the
remote loses the GSM connection (i.e. in a tunnel) I leave hearing
audio and
my cell phone receives a "BYE" after X seconds (5-10). This is very
useful
since I can understand that the session has ended due to loss of
connetion in
the remote party.
But with OpenSIPS + MediaProxy is not possible to do it. MediaProxy
can
account the call for the real duration of the RTP session, but there
is no BYE
when one of the endpoints loses the connection.
So I wonder how feasible would be the following:
- MediaProxy detects loss of RTP.
- MediaProxy accounts the call (via Radius/MySQL) as now.
- MediaProxy notifies OpenSIPS (MediaProxy -> dispacher ->
mediaproxy module)
about the end of the call.
- OpenSIPS generates BYE (local_route) in both directions of the
dialog (even
if one of them probably wouldn't arrive to the endpoint).
Other option would be:
- MediaProxy detects loss of RTP.
- MediaProxy does *NOT* account the call.
- MediaProxy notifies OpenSIPS (MediaProxy -> dispacher ->
mediaproxy module)
about the end of the call.
- OpenSIPS generates BYE in both directions of the dialog.
- OpenSIPS (in local_route) does the accounting (it must be know some
MediaProxy parameters, as the time after MediaProxy ends the session
if RTP is
lost). This BYE would also account the call end reason ("media
timeout") by
setting some AVP used in the Radius acc module...
Opinions?
For now, media-relaying solutions (as MediaProxy) are useful, and
mostly used,
for calls between SIP clients and SIP gws, so if the user (or gw)
crashes, the
accounting is "fixed". But I expect that there is more world than
just calls
between SIP users and PSTN gateways (imagine for example OpenSIPS +
MediaProxy
being used in an IMS environment where calls between users *are*
really
accounted for billing).
Thanks for any comment. Best regards.
--
Iñaki Baz Castillo <[email protected]>
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