Cannot make outbound call from extension.

[MB1]

Hi All,

I am trying to make an external call from an iPhone using the 3CX softphone (Version 1.1.4) on the same LAN as my 3CX system. Each time I try to make an external call my VOIP provider appears to block the call. I am able to make calls from another 3CX extension which is registered to my gateway (FXS) port and ultimately routes via 3CX to the same VOIP provider.

Any ideas?

Thanks.

12:36:39.463 [CM503020]: Normal call termination. Reason: Forbidden
12:36:39.463 [CM503016]: Call(3): Attempt to reach <sip:[email protected]:5060> failed. Reason: Forbidden
12:36:39.447 [CM503003]: Call(3): Call to sip:[email protected]:5060 has failed; Cause: 603 Declined; from IP:217.33.6.254:5060
12:36:39.025 [CM503025]: Call(3): Calling VoIPline:01293xxxxxx@(Ln.10000@Call UK)@[Dev:sip:[email protected]:5060]
12:36:39.025 [MS210002] C:3.2:Offer provided. Connection(transcoding mode): 194.158.81.95:9004(9005)
12:36:38.619 [CM503004]: Call(3): Route 1: VoIPline:01293xxxxxx@(Ln.10000@Call UK)@[Dev:sip:[email protected]:5060]
12:36:38.431 [CM503010]: Making route(s) to <sip:[email protected]:5060>
12:36:38.431 [MS210000] C:3.1:Offer received. RTP connection: 192.168.30.5:4000(4001)
12:36:38.431 Remote SDP is set for legC:3.1
12:36:38.431 [CM505001]: Ext.15: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CXPhone for iPhone 1.1.4] PBX contact: [sip:[email protected]:5060]
12:36:38.369 [CM503001]: Call(3): Incoming call from Ext.15 to <sip:[email protected]:5060>
12:36:36.072 [CM500002]: Info on incoming INVITE:
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.30.5:57900;rport=57900;branch=z9hG4bKPj0vawX5lbI8vN52yAXo-GDpUC4XX21lI.
Max-Forwards: 70
Contact: "Marcus Barnard"<sip:[email protected]:57900;ob>
To: <sip:[email protected]:5060>
From: "MB"<sip:[email protected]:5060>;tag=UmaD4VI3gI9BZzuyXTLAXNlfF.9YJGYa
Call-ID: V2BfTcO6kwfs8n0DeeD-76azTKm9YSG3
CSeq: 27328 INVITE
Session-Expires: 1800
Min-SE: 90
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
Proxy-Authorization: Digest username="15",realm="3CXPhoneSystem",nonce="414d535c0503b55303:0422127ecd8a06c3d9f4f911cfad576e",uri="sip:[email protected]:5060",response="beb2a7d904e96818084c6fcdbea92d65",algorithm=MD5
Supported: replaces, 100rel, timer, norefersub
User-Agent: 3CXPhone for iPhone 1.1.4
Content-Length: 0

 

[leejor]

12:36:39.463 [CM503020]: Normal call termination. Reason: Forbidden
12:36:39.463 [CM503016]: Call(3): Attempt to reach <sip:[email protected]:5060> failed. Reason: Forbidden
12:36:39.447 [CM503003]: Call(3): Call to sip:[email protected]:5060 has failed; Cause: 603 Declined; from IP:217.33.6.254:5060
12:36:39.025 [CM503025]: Call(3): Calling VoIPline:01293xxxxxx@(Ln.10000@Call UK)@[Dev:sip:[email protected]:5060]
12:36:39.025 [MS210002] C:3.2:Offer provided. Connection(transcoding mode): 194.158.81.95:9004(9005)
12:36:38.619 [CM503004]: Call(3): Route 1: VoIPline:01293xxxxxx@(Ln.10000@Call UK)@[Dev:sip:[email protected]:5060]

Your provider is refusing the number as dialled.

I am able to make calls from another 3CX extension which is registered to my gateway (FXS) port and ultimately routes via 3CX to the same VOIP provider.

Compare these log lines, in the failed call, to the same lines in a working call, any difference(s)?

 

[MB1]

Hi Leejor, Thanks for the speedy reply.

Here is an identical call made from the other extension that is registered to the gateway. I can't see a huge difference between the two logs.


13:09:58.229 [MS210003] C:4.1:Answer provided. Connection(transcoding mode[unsecure]):192.168.30.xx:7006(7007)
13:09:58.229 [MS210001] C:4.2:Answer received. RTP connection[unsecure]: 80.95.48.11:12076(12077)
13:09:58.229 Remote SDP is set for legC:4.2
13:09:58.229 [CM505003]: Provider:[Call UK] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [processor2] PBX contact: [sip:[email protected]:5060]
13:09:58.229 [CM503002]: Call(4): Alerting sip:[email protected]:5060
13:09:57.854 [CM503025]: Call(4): Calling VoIPline:01293xxxxxx@(Ln.10000@Call UK)@[Dev:sip:[email protected]:5060]
13:09:57.854 [MS210002] C:4.2:Offer provided. Connection(transcoding mode): 194.158.81.95:9006(9007)
13:09:57.838 [CM503004]: Call(4): Route 1: VoIPline:01293xxxxxx@(Ln.10000@Call UK)@[Dev:sip:[email protected]:5060]
13:09:57.838 [CM503010]: Making route(s) to <sip:[email protected];user=phone>
13:09:57.838 [MS210000] C:4.1:Offer received. RTP connection: 192.168.30.xx:6030(6031)
13:09:57.823 Remote SDP is set for legC:4.1
13:09:57.823 [CM505001]: Ext.5: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Audiocodes-Sip-Gateway-MP-114 FXS_FXO/v.6.20A.022.003] PBX contact: [sip:[email protected]:5060]
13:09:57.823 [CM503001]: Call(4): Incoming call from Ext.5 to <sip:[email protected];user=phone>
13:09:57.760 [CM500002]: Info on incoming INVITE:
INVITE sip:[email protected];user=phone SIP/2.0
Via: SIP/2.0/UDP 192.168.30.xx;branch=z9hG4bKac596532247
Max-Forwards: 70
Contact: <sip:[email protected]:5060>
To: <sip:[email protected];user=phone>
From: <sip:[email protected]>;tag=1c596189346
Call-ID: [email protected]
CSeq: 2 INVITE
Allow: REGISTER, OPTIONS, INVITE, ACK, CANCEL, BYE, NOTIFY, PRACK, REFER, INFO, SUBSCRIBE, UPDATE
Proxy-Authorization: Digest username="5",realm="3CXPhoneSystem",nonce="414d535c0503bd2525:156ca2024979c084fb89472e3ca63077",uri="sip:[email protected]",algorithm=MD5,response="d7a55048ba87f348fe195216ea210109"
Supported: em, timer, replaces, path, resource-priority, sdp-anat
User-Agent: Audiocodes-Sip-Gateway-MP-114 FXS_FXO/v.6.20A.022.003
Content-Length: 0

 

[leejor]

The thing that stands out, (and what may be causing the call to fail may be something you can only see if using something like wireshark), is that fact that you have a name involved as a part of the contact, of the failing call.

Contact: "Marcus Barnard"<sip:[email protected]:57900;ob>

On the working call, for some reason, even though it is extension 11, the user name shows as 5

username="5",realm="3CXPhoneSystem",nonce="414d535c0503bd2525:156ca2024979c084fb89472e3ca63077"
,uri="sip:[email protected]",algorithm=MD

Whereas on extension 15, the username is 15, also the response is included here but not in the failing call

username="15",realm="3CXPhoneSystem",nonce="414d535c0503b55303:0422127ecd8a06c3d9f4f911cfad576e"
,uri="sip:[email protected]:5060",response="beb2a7d904e96818084c6fcdbea92d65",algorithm=MD5
Supported: replaces, 100rel, timer, norefersub

I'm not sure if those differences are what is causing the failure, you may want to contact your provider to see if they can offer an explanation that may save you some troubleshooting time. Or, download a copy of Wireshark and start looking at what is actually being sent for each call.

 

[MB1]

This is probably my fault as I was trying to remove any sensitive network information I obviously didn't do a very good job! I'll try wiresharking later. Thanks again for your help.

 

[MB1]

Fixed!
The outbound call ID entry in 3CX was different to VOIP provider's caller ID hence the rejection.

Thanks again for your help Leejor.