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Support #2433

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Ongoing 403 D13 Error When Dialing Out via Telnyx Trunk – Request for Assistance

Added by Zima Ivana 29 days ago. Updated 23 days ago.

Status:
Closed
Priority:
Normal
% Done:

0%

Cloudonix Domain:
Session tokens:

Description

Hello Cloudonix Support Team,

I’m having trouble completing inbound and outbound calls through our Telnyx SIP trunk in md-test.cloudonix.net and would appreciate your help.

Issue Summary
Every call placed by our ReTell.ai application is rejected with
403 Dialed number +49xxxxxxxxxxx (associated countries: DEU) is not included in whitelisted countries SWE,POL,GBR,DNK D13.

Cloudonix then reports
No outbound trunk found to take the call … last status: ERROR

Please let me know if I can provide further details or real-time logs. All relevant screenshots (domain settings, trunk settings, Telnyx profile) will be attached to this ticket for your reference.

Thank you very much for your assistance.

Best regards,

Ivana Dudenko
Business Analyst | MD Software & Design
ivana.zima@md-softwaredesign.de

*due to the limited amount of attachments, i could not upload all the screenshots that I have, please let me kno, how I can provide more, if needed.


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Actions #1

Updated by Oded Arbel 28 days ago

  • Status changed from New to Resolved

The 403 Dialed number … is not included in whitelisted countries is a known (and intended) limitation of the Telnyx configuration: Telnyx limits call termination to specific countries that you have designated, and by default includes only US and Canada. From the error message it looks like you've already whitelisted some European countries but not Germany, which is what you need to allow calls to numbers with the +49 international prefix.

See the following Telnyx Troubleshooting document, where under "Dialed number is not included in your whitelisted countries/regions" it explains how to whitelist regions.

We recommend you whitelist all continents, or at least the European Union.

Actions #2

Updated by Zima Ivana 28 days ago

Oded Arbel wrote in #note-1:

The 403 Dialed number … is not included in whitelisted countries is a known (and intended) limitation of the Telnyx configuration: Telnyx limits call termination to specific countries that you have designated, and by default includes only US and Canada. From the error message it looks like you've already whitelisted some European countries but not Germany, which is what you need to allow calls to numbers with the +49 international prefix.

See the following Telnyx Troubleshooting document, where under "Dialed number is not included in your whitelisted countries/regions" it explains how to whitelist regions.

We recommend you whitelist all continents, or at least the European Union.

Thank you for your answer. Please check the uploaded png "Telnyx - outbound profile 2" - there it is marked with red that germany is whitelisted.

Actions #3

Updated by Oded Arbel 28 days ago

Then may I suggest you contact Telnyx support about this - according to the text of the error message their system have sent, only Sweden, Poland, Great Britain and Denmark are whitelisted.

I believe Telnyx support will be able to help you better than we at Cloudonix can - the error message shown in the Cockpit is exactly the error message Cloudonix have received from Telnyx.

If they ask for a SIP trace, here is the relevant part of the SIP trace for the call in session 177b31071d424fa692da4104d27e700c:

2025-05-29T14:22:30.333Z 172.24.20.20:5060 -> 192.76.120.10:5060
INVITE sip:+4922884239070@8c7f5338-dab0-316b-a09a-d70016010ee5.sip.telnyx.com:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 18.219.128.166:5060;branch=z9hG4bK046f.fd3b9de3b9541138c3aa7aa562b6d7ea.0
Max-Forwards: 69
From: "+4915156196505" <sip:cloudonix@md-test.cloudonix.net>;tag=as4c7244d6
To: <sip:+4922884239070@md-test.cloudonix.net>
Call-ID: 3db90a3d07af2ad23a940f085600def8@13.58.74.243:9067
CSeq: 102 INVITE
User-Agent: Cloudonix-App.Core/5.3.178_5.3.591.7_18.23.1
Date: Thu, 29 May 2025 14:22:30 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces
X-CID: f342800c-6013-4dab-9450-5511fa784752
X-CX-Cloudonix-Signature: 8eb479135d5cbebf4223df7c14ffe3f8
X-CX-CID: f342800c-6013-4dab-9450-5511fa784752
X-CX-Cloudonix-Timestamp: 1748528549
X-CX-Cloudonix-IP: 192.76.120.10
X-CX-Tags: MD,demo
X-CX-Cloudonix-Port: 5060
X-CX-Cloudonix-Origin: border
Content-Type: application/sdp
Content-Length: 337
TH: dih
Contact: <sip:btpsh-681b5213-4-69141@18.219.128.166>

v=0
o=root 1315553389 1315553389 IN IP4 3.142.130.87
s=Asterisk PBX 18.23.1
t=0 0
m=audio 31954 RTP/AVP 0 8 18 101
c=IN IP4 3.142.130.87
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=sendrecv
a=rtcp:31955
a=ptime:20
a=maxptime:140
  ---

2025-05-29T14:22:30.368Z 192.76.120.10:5060 -> 172.24.20.20:5060
SIP/2.0 100 Telnyx Trying
Via: SIP/2.0/UDP 18.219.128.166:5060;branch=z9hG4bK046f.fd3b9de3b9541138c3aa7aa562b6d7ea.0;rport=5060
From: "+4915156196505" <sip:cloudonix@md-test.cloudonix.net>;tag=as4c7244d6
To: <sip:+4922884239070@md-test.cloudonix.net>
Call-ID: 3db90a3d07af2ad23a940f085600def8@13.58.74.243:9067
CSeq: 102 INVITE
Server: Telnyx SIP Proxy
Content-Length: 0

  ---

2025-05-29T14:22:30.573Z 192.76.120.10:5060 -> 172.24.20.20:5060
SIP/2.0 403 Dialed number +4922884239070 (associated countries: DEU) is not included in whitelisted countries SWE,POL,GBR,DNK D13
Via: SIP/2.0/UDP 18.219.128.166:5060;rport=5060;branch=z9hG4bK046f.fd3b9de3b9541138c3aa7aa562b6d7ea.0
Max-Forwards: 68
From: "+4915156196505" <sip:cloudonix@md-test.cloudonix.net>;tag=as4c7244d6
To: <sip:+4922884239070@md-test.cloudonix.net>;tag=68jjcKrv48UDr
Call-ID: 3db90a3d07af2ad23a940f085600def8@13.58.74.243:9067
CSeq: 102 INVITE
Accept: application/sdp
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REFER, NOTIFY
Supported: path
Allow-Events: talk, hold, conference, refer
Reason: Q.850;cause=17;text="USER_BUSY"
Content-Length: 0
Actions #4

Updated by Oded Arbel 23 days ago

  • Status changed from Resolved to Closed

Closed due to no additional customer feedback.

I'm assuming Telnyx support had taken care of the issue as we see new sessions in md-test.cloudonix.net being terminated correctly to +49 numbers

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