Hi, Every week or two I need to restart all the services in order to be able to make calls. I can see from the activity log that 3CX attempts to make the call, but the call never gets in. Code: 07-sep-2015 08:59:34.608 Leg L:2557.1[Extn] is terminated: Cause: CANCEL from 192.168.1.217:5075 07-sep-2015 08:59:23.145 Currently active calls - 1:  07-sep-2015 08:59:06.951 [CM503025]: Call(C:2557): Calling T:Line:10009>>28763546@[Dev:sip:firstname.lastname@example.org:5060] for L:2557.1[Extn] 07-sep-2015 08:59:06.894 [CM503027]: Call(C:2557): From: Extn:331 ("Denni Pultz Gottfredsen" <sip:email@example.com:5060>) to T:Line:10009>>28763546@[Dev:sip:firstname.lastname@example.org:5060] 07-sep-2015 08:59:06.894 [CM503004]: Call(C:2557): Route 1: from L:2557.1[Extn] to T:Line:10009>>28763546@[Dev:sip:email@example.com:5060] 07-sep-2015 08:59:06.894 Line limit check: Current # of calls for line Lc:10009(@VIPTEL (82130330)[<sip:firstname.lastname@example.org:5060>]) is 0; limit is 30 07-sep-2015 08:59:06.894 Call(C:2557): Call from Extn:331 to 28763546 matches outbound rule '82130330' 07-sep-2015 08:59:06.893 [CM503001]: Call(C:2557): Incoming call from Extn:331 to <sip:email@example.com:5060> 07-sep-2015 08:59:06.893 NAT/ALG check:L:2557.1[Extn] REQUEST 'INVITE' - basic check passed. No information for extended checks Restarting the services helps, but it is really a pain. Does anyone have a clue?