Calls declined after uprade to FreePBX 2.5


I decided to upgrade my system today and for some reason I cannot call from my system any more. If I look in Asterisk, I can see that all the SIP phones are registered, and my IAX trunks are registered, but I am unable to call anything.

The system just says Declined: ext no’s

Its very weird, and I would appreciate some help if possible, thank you so much!!

Kind regards,