> On 12 Jul 2016, at 17:48, Dale R. Worley <wor...@ariadne.com> wrote: > > Roman Shpount <ro...@telurix.com> writes: >> We actually always use UDP like re-transmits even when sending SIP messages >> over TCP or TLS. There are enough implementations that connect TCP or TLS >> interface with UDP using a stateless proxy which make it necessary. > > Just last night, I found this requirement, which I had long forgotten: > > RFC 3261, section 16.1 > > Requests forwarded between different types of transports where the > proxy's TU must take an active role in ensuring reliable delivery on > one of the transports MUST be forwarded transaction statefully. > > That is, a stateless proxy is not allowed to send via UDP a request it > received via TCP.
I am not sure that “transaction statefully” means “on connection-oriented transport”. It means that it can not be stateless. Or? /O _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors