On 9/13/24 7:19 AM, Matt Hoppes wrote:
Yes. We run lots of SIP UDP over many networks without issue. I feel like bloat is exactly an application for using UDP?
With TCP won't that cause more bloat/delay? That being said, we generally see about 3-6 ms between end points and our PBX systems, so I'm not really worried about delay or bloat... just the XFinity firewall trashing active sessions.
I'm was just wondering if UDP is still viable for SIP these days. I'm talking about the bloat of accreted features in SIP blowing out MTU on a message basis. In any case, running it over UDP sounds suspiciously like it could be tickling firewall timeouts. SIP is so low volume that it hardly matters for the client side and even for the server side it's not like TCP is a big deal. You really should be running TLS in any case. Who knows how well DTLS is support on proxies, or whether it's supported at all. Mike