Not able to do outgoing calls. 403 forbidden

[Nobi0987]

Hi, We have recently bought 2 new numbers from Twilio and added them to our server. After adding them to the sip truck we were able to get incoming calls but we could not make any calls. We had added a Twilio number before and that sip trunk is working fine. We asked Twilio support and they said that our configuration on the Twilio portal is good and they think the issue is on the PBX system configuration.

 

[TheodorosG_3CX]

Based on the screenshot the call is forbidden from the ip of the provider.
You need to clarify if the ip is whitelisted from their side.

 

[leejor]

If the number you are sending looks to be in the correct format (compare with your working trunk), check that you are sending an "approved" caller ID as well.

 

[TheodorosG_3CX]

Adding to what @leejor mentioned this is rejected from the provider and they need to clarify why.