I have been running my 3CX for a few years now and all is up to date and has been working fine. I have noticed in the past week or two that inbound calls on one of the PSTN lines, after ringing (ring Group 800), instead of going to voice mail gets a message something like "the destination is not registered or not available" and then hangs up. 
I have two PSTN lines going in to a Grandstream GXW4104, one for home and one for the office. It is ONLY the office line this happens on.
Here is the log
:S
I have two PSTN lines going in to a Grandstream GXW4104, one for home and one for the office. It is ONLY the office line this happens on.
Here is the log
Code:
14:22:24.107 Currently active calls [none]
14:22:21.258 [CM503008]: Call(57): Call is terminated
14:22:03.088 Session 114948 of leg C:57.1 is confirmed
14:22:03.024 [CM503007]: Call(57): Device joined: sip:[email protected]:40600;rinstance=da64bf24751c7083
14:22:02.975 [CM503007]: Call(57): Device joined: sip:[email protected]:5060;transport=udp
14:22:02.970 [MS210005] C:57.1:Answer provided. Connection(proxy mode):192.168.1.51:7264(7265)
14:22:02.965 [MS210001] C:57.3:Answer received. RTP connection[unsecure]: 127.0.0.1:40674(40675)
14:22:02.960 Remote SDP is set for legC:57.3
14:22:02.728 [CM503002]: Call(57): Alerting sip:[email protected]:40600;rinstance=da64bf24751c7083
14:22:02.375 [CM503025]: Call(57): Calling Unknown:Ext.EndCall@[Dev:sip:[email protected]:40600;rinstance=da64bf24751c7083]
14:22:02.365 [MS210004] C:57.3:Offer provided. Connection(proxy mode): 127.0.0.1:7268(7269)
14:22:02.240 [CM503016]: Call(57): Attempt to reach <sip:[email protected]:5060> failed. Reason: Temporarily Unavailable
14:22:02.230 [CM503003]: Call(57): Call to sip:[email protected] has failed; Cause: 480 Temporarily not available; from IP:192.168.1.90:5060
14:21:53.999 [CM503025]: Call(57): Calling RingAll800:100Ext.100101Ext.101102103Ext.103105Ext.105@[Dev:sip:[email protected]:5060]
14:21:53.998 [MS210006] C:57.2:Offer provided. Connection(by pass mode): 192.168.1.95:5032(5033)
14:21:53.934 Currently active calls - 1: [57]
14:21:53.932 [CM503004]: Call(57): Route 1: RingAll800:100Ext.100101Ext.101102103Ext.103105Ext.105@[Dev:sip:[email protected]:5060]
14:21:53.837 [CM503010]: Making route(s) to <sip:[email protected]:5060>
14:21:53.836 [MS210000] C:57.1:Offer received. RTP connection: 192.168.1.95:5032(5033)
14:21:53.825 Remote SDP is set for legC:57.1
14:21:53.823 [CM505002]: Gateway:[GWX 4104] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Grandstream GXW4104 (HW 1.1, Ch:7) 1.3.4.10] PBX contact: [sip:[email protected]:5060]
14:21:53.768 [CM503001]: Call(57): Incoming call from 07770740133@(Ln.10001@GWX 4104) to <sip:[email protected]:5060>
14:21:53.739 [CM503012]: Inbound out-of-office hours rule (unnamed) for 10001 forwards to DN:800
14:21:53.739 Looking for inbound target: called=444; caller=07770740133
14:21:53.734 [CM500002]: Info on incoming INVITE:
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 192.168.1.95:5060;branch=z9hG4bKa0e0c3277a52ce37
Max-Forwards: 70
Contact: <sip:[email protected]:5060;transport=udp>
To: <sip:[email protected]>
From: <sip:[email protected]>;tag=6da77357dcc41d10
Call-ID: [email protected]
CSeq: 23405 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, INFO, SUBSCRIBE, UPDATE, PRACK
Proxy-Authorization: Digest username="10001",realm="3CXPhoneSystem",algorithm=MD5,uri="sip:[email protected]",nonce="414d535c04cb1d8125:9ca79156fa7e85df9b569c83659e964d",response="e6d33d536864a0ef5b8cc351b6ec7bae"
Supported: replaces, timer, path
User-Agent: Grandstream GXW4104 (HW 1.1, Ch:7) 1.3.4.10
Content-Length: 0
