I have 2 trunks set up with failover to the 2nd trunk. When a call is made, and the destination is busy, instead of hearing a busy tone, the failover is activated. In my case, the 2nd trunk is a PSTN through an SPA-2102, and I just get a dial tone.
If I was to dial the number again at that dial tone, I get the busy signal, confirming that snom one is not identifying the busy signal, or at least I don't have it set up correctly.
Any help would be much appreciated. Thanks.