Call not going out or coming in to the pbx

[Osman Kamara]

Hey Guys, could anyone help in solving this issue, calls are not flowing in the pbx

 

[VasilisV_3CX]

Hi @Osman Kamara,

Do you have a supported SIP Trunk linked to the PBX?

What version of the PBX are you running?

 

[Osman Kamara]

i am running this version debian 9 and there is an update available for this version:

1 V18 & OS Upgrade Available - Debian 10

 

[leejor]

A bit more information would help.
https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

Does your provider show as registered, or do you use a gateway?
Have you run the 3CX Firewall Checker, with success?
Have you looked at the 3CX Activity Log, for any errors?