how to configure server to allow sip call

[alphachrome]

I'm receiving this message in the log when a contact is trying to call me with "[email protected]" Can some body help me?

[CM010001] Line configuration does not allow identification of the source of this call. Check Advanced Options for Gateways and Providers and match a field to a correct value from the following: Contact IP: 'XXXXXX'; From: 'XXXXX'; To: '100'; Rline: '100'; Contact: 'XXXXXX'

 

[ecwilson]

Which version of 3CX are you running & what's your OS???
Do you have your dns srv entries setup???

ecwilson