Hello,
On 05/19/06 05:49, T.R. Missner wrote:
Hello,
Is it possible to use openSER as TCP <--> UDP convertor?
yes, it is possible. OpenSER can perform transport layer conversion.
I have this working to a certain extent.
1) UA -> TCP INV -> openSER -> UDP INV -> Carrier
2) UA <- TCP 200 <- openSER <- UDP 200 <- Carrier
3) UA -> TCP ACK -> openSER -> UDP ACK -> Carrier
Setup transaction works like it should.
My question is about subsequent transactions.
In the 200 from Carrier (2) a parameter of transport=udp is set on the
contact header.
Now if the UA is running in an automatic protocol mode ( this would be
UA specific ), It honors the transport=udp param and sends a BYE or
re-Invite as UDP
The ua has to honor the Record-Route from 200OK, which would specify the
TCP transport. The proxy is the one which has to honor the Contact
header, being the one which delivers the message to that hop.
Cheers,
Daniel
4) UA -> UDP BYE -> openSER -> UDP BYE -> Carrier
5) UA <- UDP 200 <- openSER <- UDP 200 <- Carrier
Is there a way to re-write the transport= param in the contact header
of the 200 ( msg 2 ) so it says transport=tcp Which would then allow
the subsequent request messages from UA to be sent tcp?
Would doing this break the rfc?
Is anyone using openSER to accomplish similar protocol conversion?
Thanks,
T.R.
------------------------------------------------------------------------
*T.R. Missner*
/Director Enterprise VoIP Products/
trmissner(a)bandwidth.com <mailto:trmissner@bandwidth.com>
919-439-3575 - Ph
925-888-2997 - Fax
4001 Weston Parkway
Cary, NC 27513
------------------------------------------------------------------------
CONFIDENTIALITY NOTICE
This e-mail message, including any attachments from
Bandwidth.com -
contain information which is CONFIDENTIAL AND/OR LEGALLY PRIVILEGED.
The information is intended only for the use of the individual named
above and may not be disseminated to any other party without written
permission. If you are not the intended recipient, or the employee or
agent responsible for delivering the message to the intended
recipient, you are hereby notified that any dissemination, disclosure,
distribution, copying or taking of any action in reliance on the
contents of this e-mailed information is strictly prohibited. If you
have received this transmission in error, please immediately notify
info(a)bandwidth.com, and permanently delete this e-mail and the
attachments hereto, if any, and destroy any printout thereof.
------------------------------------------------------------------------
_______________________________________________
Users mailing list
Users(a)openser.org
http://openser.org/cgi-bin/mailman/listinfo/users