All phones drop incoming calls sometimes

[oliverm]

We have an issue whereby the phones will ring once and then stop. All the phones are in a ring group. We thought it was just someone hanging up before we could answer it. However sometimes these calls then get set to our answering service, which is done by a forward in 3cx.

When we looked at the logs we see that 3cx reports that all four phones terminated the call at the same time, but no one did.

Any ideas what this may be?

Heres the logs


All phones rejected incoming call


All phones rejected incoming call

11:37:21.140 Currently active calls [none]
11:37:03.390 [CM503008]: Call(20): Call is terminated
11:36:50.375 [CM503003]: Call(21): Call to sip:[email protected]:5060 has failed; Cause: 487 Request Terminated; from IP:10.1.39.29:2048
11:36:50.359 [CM503003]: Call(21): Call to sip:[email protected]:5060 has failed; Cause: 487 Request Terminated; from IP:10.1.39.35:2048
11:36:50.359 [CM503003]: Call(21): Call to sip:[email protected]:5060 has failed; Cause: 487 Request Terminated; from IP:10.1.39.28:2048
11:36:50.359 [CM503003]: Call(21): Call to sip:[email protected]:5060 has failed; Cause: 487 Request Terminated; from IP:10.1.39.16:2048
11:36:50.234 [CM503008]: Call(21): Call is terminated
11:36:49.140 Currently active calls - 2: [20,21]
11:36:48.500 [CM505001]: Ext.101: Device info: Device Identified: [Man: Snom;Mod: 3xx series;Rev: General] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [snom320/7.3.14] PBX contact: [sip:[email protected]:5060]
11:36:48.500 [CM503002]: Call(21): Alerting sip:[email protected]:2048;line=hpvk5vv5
11:36:48.500 [CM505001]: Ext.100: Device info: Device Identified: [Man: Snom;Mod: 3xx series;Rev: General] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [snom320/7.3.14] PBX contact: [sip:[email protected]:5060]
11:36:48.500 [CM503002]: Call(21): Alerting sip:[email protected]:2048;line=j3b41cpk
11:36:48.437 [CM505001]: Ext.102: Device info: Device Identified: [Man: Snom;Mod: 3xx series;Rev: General] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [snom320/7.3.14] PBX contact: [sip:[email protected]:5060]
11:36:48.437 [CM503002]: Call(21): Alerting sip:[email protected]:2048;line=bxp367tj
11:36:48.312 [CM505001]: Ext.103: Device info: Device Identified: [Man: Snom;Mod: 3xx series;Rev: General] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [snom320/7.3.14] PBX contact: [sip:[email protected]:5060]
11:36:48.312 [CM503002]: Call(21): Alerting sip:[email protected]:2048;line=7on05cxi
11:36:48.218 [CM503025]: Call(21): Calling RingAll800:100Ext.100101Ext.101103Ext.103102Ext.102@[Dev:sip:[email protected]:2048;line=bxp367tj]
11:36:48.218 [MS210002] C:21.5:Offer provided. Connection(transcoding mode): 10.1.39.6:7088(7089)
11:36:48.218 [CM503025]: Call(21): Calling RingAll800:100Ext.100101Ext.101103Ext.103102Ext.102@[Dev:sip:[email protected]:2048;line=7on05cxi]
11:36:48.203 [MS210002] C:21.4:Offer provided. Connection(transcoding mode): 10.1.39.6:7086(7087)
11:36:48.203 [CM503025]: Call(21): Calling RingAll800:100Ext.100101Ext.101103Ext.103102Ext.102@[Dev:sip:[email protected]:2048;line=hpvk5vv5]
11:36:48.203 [MS210002] C:21.3:Offer provided. Connection(transcoding mode): 10.1.39.6:7084(7085)
11:36:48.203 [CM503025]: Call(21): Calling RingAll800:100Ext.100101Ext.101103Ext.103102Ext.102@[Dev:sip:[email protected]:2048;line=j3b41cpk]
11:36:48.203 [MS210002] C:21.2:Offer provided. Connection(transcoding mode): 10.1.39.6:7082(7083)
11:36:48.187 [CM503004]: Call(21): Route 1: RingAll800:100Ext.100101Ext.101103Ext.103102Ext.102@[Dev:sip:[email protected]:2048;line=j3b41cpk,Dev:sip:[email protected]:2048;line=hpvk5vv5,Dev:sip:[email protected]:2048;line=7on05cxi,Dev:sip:[email protected]:2048;line=bxp367tj]
11:36:48.187 [CM503010]: Making route(s) to <sip:[email protected]:5060>
11:36:48.187 [MS210000] C:21.1:Offer received. RTP connection: 83.218.143.18:32484(32485)
11:36:48.187 Remote SDP is set for legC:21.1
11:36:48.187 [CM505003]: Provider:[Spitfire] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [] PBX contact: [sip:[email protected]:62445]
11:36:48.156 [CM503001]: Call(21): Incoming call from 01273719594@(Ln.10000@Spitfire) to <sip:[email protected]:5060>
11:36:48.046 [CM503012]: Inbound specific hours w/o holidays rule (441273907880) for 10000 forwards to DN:800
11:36:48.046 Looking for inbound target: called=441273907880; caller=01273719594
11:36:48.046 [CM500002]: Info on incoming INVITE:
INVITE sip:[email protected]:62445;rinstance=ce804627bcd7baea SIP/2.0
Via: SIP/2.0/UDP 83.218.143.18:5060;branch=z9hG4bK-d87543-037a890f6b49492953f3-1-cHBiNWM0Y2E1YzZlMmNhZTZjNGY3Yg..-d87543-
Max-Forwards: 15
Contact: <sip:CqIgJwaIDiqTyU0B1MKPEKaTpjNiK4vnuXqMEd7SgCdC_mA5iVrd9GXUh4zQO2agECWU9qPEsQTO3c9MjtqPTI7Yz0xO2Q9MT4@83.218.143.18:5060>
To: <sip:[email protected]>
From: <sip:[email protected]>;tag=6a165464
Call-ID: 9beaad0913b4a12b8a2098ca6d73d6f6
CSeq: 500542371 INVITE
P-Asserted-Identity: <sip:[email protected]:5060>
Content-Length: 0
Remote-Party-ID: <sip:[email protected]:5060>;party=calling;screen=yes;privacy=off
X-Remote-Info: sip:217.13.128.46:5060;transport=UDP, sip:83.218.143.99:5060;transport=UDP

 

[davidbenwell]

Hi. we could resolve this for you, however a small fee of £25.52 would be payable and for this we would login and investigate and if we where not able to fix, we would offer you a full refund.

if you would like us to do this for you, please click the below link

http://www.3cx-phone-system.co.uk/3cx-support/pay-as-you-go-support.html

We could have this fixed today.