I've noticed that dual registration does not seems to work using TLS or TCP, instead of UDP signaling. Has anyone else seen this? There is nothing about it in any documentation. I'm wondering if this may be some type of limitation of TCP and not necessarily the phone.
I was troubleshooting with two remote systems. I thought maybe it was a router issue, so I set up a local system and still have the same issue. When you use TCP or TLS, the phone will only register to the primary, and does not register to the secondy, even though dual registration is enabled. Switch to UDP and it works perfectly.
tested with SPA504G, SPA514G, CP-8545, SPA525G, SPA525G2.
I'd appreciate anyone's input.
