How to connect your SIP Trunk to 3CX or other PBX

Created by Khouloud Dridi, Modified on Tue, 25 Jul 2023 at 02:58 PM by Iosif-Sebastian Man

                    In this guide we will show you how to connect your SIP Trunk to 3CX or other PBX system


                                             Connect your SIP Trunk to 3CX

Step 1: Navigate to the PBX system and create a new SIP Trunk connection, as follows:

Step 2: Select the country and choose Telxi provider from the drop-down list, add the main trunk number and then press OK (main trunk ID):

Trunk ID can be found in Telxi portal in SIP Trunks section


Step 3Enter the number of simultaneously calls according to the existing SIP Trunk from Telxi Portal (depends on the purchased product):


From Telxi



Step 4: Enter the Authentication ID and Password , as follows:


- authentication ID ( the trunk account ID )
-  authentication password ( acquired from Telxi Portal )

Step 5Navigate to the DIDs section and start adding the numbers (E164 format):


In order to complete the SIP Trunk configuration, please save by pressing OK.


Connect your SIP Trunk to other PBX system


In order to connect your SIP trunk to other PBX system, please see below:

  • Authentication type: Register/Account based

  • SIP host: sip.telxi.com

  • SIP port: 5060, UDP

  • SIP credentials: - authentication ID/User ( the trunk account ID )

                            - authentication password ( acquired from Telxi Portal )

  • Codecs: PCMA,PCMU,G729,Opus



Was this article helpful?

That’s Great!

Thank you for your feedback

Sorry! We couldn't be helpful

Thank you for your feedback

Let us know how can we improve this article!

Select atleast one of the reasons
CAPTCHA verification is required.

Feedback sent

We appreciate your effort and will try to fix the article