Hi, Strangely most of mornings i have to restart our Patton 4960 gateway. It likes goes dead at night and 3cx is not able to find it. I have replace our old patton with another new one but still the problem exists. It is very strange as it straight away works after restarting Patton. I have some logs here: 14:06:49.486 [CM503001]: Call(5): Incoming call from Ext.1301 to <sip:email@example.com;user=phone> 14:06:49.533 [CM503004]: Call(5): Route 1: Unknown:0xxxxxxxxxx@(Ln.50000@Patton 4969 4-Port)@[Dev:sip:firstname.lastname@example.org:5060] 14:06:49.549 [CM503024]: Call(5): Calling Unknown:0xxxxxxxxxx@(Ln.50000@Patton 4969 4-Port)@[Dev:sip:email@example.com:5060] 14:06:53.615 [CM503003]: Call(5): Call to sip:firstname.lastname@example.org:5060 has failed; Cause: 503 Service Unavailable; from IP:10.0.0.23:5060 14:06:53.615 [CM503015]: Call(5): Attempt to reach <sip:email@example.com;user=phone> failed. Reason: Server Failure Any help will be appreciated Thx a lot.