[Asterisk-Users] Sip registration Problems With Zyxel P2000W

[Ugur GUNCER]

Hi all,

I bougth zyxel wifi phone but i  cant register 
when i want to register phone to asterisk i recieve 
These errors I spend 6 hours to fix regist problem but i cant find the
solution 

[9875]
type=friend
username=9875
secret=5789
host=dynamic
context=default
callerid="Ugur Guncer" <9875>
canreinvite=no
dtmfmode=rfc2833
nat=no






Sip read: 
REGISTER sip:213.139.225.82:5060 SIP/2.0
Via: SIP/2.0/UDP 85.99.110.143:43956;branch=z9hG4bK84f1504a359cd0
From: <sip:9875 at 213.139.225.82;user=phone>;tag=5175B05114E474A31693
To: <sip:9875 at 213.139.225.82;user=phone>
Call-ID: 20926-1B11-1117-42FB-D241E84DF8E0 at 10.0.0.6
CSeq: 12 REGISTER
User-Agent: ZyXEL P2000W VoIP Wi-Fi Phone
Contact: <sip:9875 at 85.99.110.143:43956;transport=udp>
Expires: 300
Content-Length: 0


10 headers, 0 lines
Using latest request as basis request
Sending to 85.99.110.143 : 43956 (non-NAT)
Transmitting (no NAT):
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 85.99.110.143:43956;branch=z9hG4bK84f1504a359cd0
From: <sip:9875 at 213.139.225.82;user=phone>;tag=5175B05114E474A31693
To: <sip:9875 at 213.139.225.82;user=phone>;tag=as369f8960
Call-ID: 20926-1B11-1117-42FB-D241E84DF8E0 at 10.0.0.6
CSeq: 12 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:9875 at 213.139.225.82>
Content-Length: 0


 to 85.99.110.143:43956
Transmitting (no NAT):
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 85.99.110.143:43956;branch=z9hG4bK84f1504a359cd0
From: <sip:9875 at 213.139.225.82;user=phone>;tag=5175B05114E474A31693
To: <sip:9875 at 213.139.225.82;user=phone>;tag=as369f8960
Call-ID: 20926-1B11-1117-42FB-D241E84DF8E0 at 10.0.0.6
CSeq: 12 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:9875 at 213.139.225.82>
WWW-Authenticate: Digest realm="asterisk", nonce="0f3403ce"
Content-Length: