[Solved]External extension cannot place calls (GXP-2000)

[miraportuga]

Been a long time since my last post on this forums, finally upgraded from version 3.1 to the latest one wich seems to be working just fine.
Now im trying to make an external extension to work and this is what i get on the logs.

16:20:45.941 [CM502001]: Source info: From: "teste"<sip:9007@mydomain;user=phone>;tag=6c3e4c081312e2a4<sip:9999@mydomain;user=phone>
16:20:45.941 [CM503013]: Call(34): Incoming call rejected, caller is unknown; msg=SipReq: INVITE 9999@mydomain tid=090895498879a322 cseq=INVITE [email protected]:50821 / 27591 from(wire)
16:20:45.320 [CM500002]: Unidentified incoming call. Review INVITE and adjust source identification:
INVITE sip:9999@mydomain;user=phone SIP/2.0
Via: SIP/2.0/UDP 95.69.xx.xx:50821;branch=z9hG4bKc9b941993480b3f1
Max-Forwards: 70
Contact: <sip:[email protected]:50821;transport=udp;user=phone>
To: <sip:9999@mydomain;user=phone>
From: "teste"<sip:9007@mydomain;user=phone>;tag=6c3e4c081312e2a4
Call-ID: [email protected]
CSeq: 27590 INVITE
Session-Expires: 180
Min-SE: 90
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, INFO, SUBSCRIBE, UPDATE, PRACK, MESSAGE
Supported: replaces, timer, path
User-Agent: Grandstream GXP2000 1.2.2.14
Content-Length: 0
P-Early-Media: Supported

16:20:45.320 [CM302001]: Authorization system can not identify source of: SipReq: INVITE 9999@mydomain tid=c9b941993480b3f1 cseq=INVITE [email protected]:50821 / 27590 from(wire)

Not sure whats wrong here. Phone registers, it can take calls, but not place them, not even for internal pbx numbers...

Cheers

More info:
Open ports to the internet:
5060(TCP&UDP)
5090(TCP)
External RTP Ports(UDP)

Well, got it solved. Had my sip domain with the internal ip of my pbx, changed to the FQDN of my external ip, and its all working now