T46G BLF Keys Issue

[Bryan Nelson]

I have previously worked with Yealink support to resolve a similar BLF issue we had.

We use DNS-SRV, and the BLF subscribe requests would not return to the primary server after a failover event. The solution was to use the outbound proxy server (same SRV address as the registration server). This forced the BLF subscribe events to always use the proxy address, rather than just continuing a valid subscription on the failover server. A side effect was that this "reset" the subscription as well, resolving any state issues it was having on the primary server as well. So, a combination of outbound proxy, and a short subscribe interval should clean things up a bit for you.

Happy troubleshooting!