On Tue, 2005-11-08 at 08:53 +0000, Matthew Gardiner wrote: > Is the transport type used for one transaction in a call to be the same in > other transactions of the same call?
The decision about the specific transport method is made for each hop of each request and each response. > As my area of work is telephony, the idea of opening/closing connections > throughout the life of a call seems a little sub optimal given the time > taken making a socket API connect call. Do any others agree? As someone else noted, the current consensus is that an element should keep a TCP connection open as long as it can, as it is likely to need to transmit further messages to the remote the TCP connection goes to. > is there any > mechanism in SIP of forcing an entire call to use the same transport type > for all it's transactions. Generally not. You can use a sips: URI to require security at every step of transmission, and you can apply ";transport=tcp" parameters, but there is no guarantee that it will be applied if there is intermediate routing. Dale _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
