New PBX Install Won't Register Extensions

[calsmiller]

Hi, I am new to 3CX, but currently successfully operate an asterisk based system and have successfully implemented our SIP carrier and softphones (linksys) on that platform, we also use X-lite and have had great luck. We need an easier to manage system so I was interested in this one. So, here's where we are:

1. New Instance of Windows Server 2008 R2 installed in a data center with 10MB connection and all appropriate (I think) firewall ports open
2. clean 3CX install
3. SIP provider is registered and DID is accepting calls to 3CX, I can route to specific functions and it seems to be working.
4. None of our extensions, softphones or phones will register. I even tried the 3CX iphone app....

Anybody have any ideas ? Happy to share our results here.

Thanks !

 

[davidbenwell]

Open the extensions and select the “Other” Tab and at the bottom, you should see a tick box with “Disallow use of extension outside the Lan” untick this box and apply. Reboot your phone and should now work

 

[calsmiller]

That was it ! Thanks so much. I was going nuts looking at firewalls, other settings. Thanks again.

 

[davidbenwell]

Excellent, no worries. Enjoy