[Asterisk-Users] SIP/grandstream not registering

[Chandra]

hi,

i can't seem to register my grandstream SIP to * server...

i have my grandstream IP as 192.168.0.11 want to register to * at
202.51.xx.xxx.

sip show peers says that my grand stream has unspecified IP but when i try
to dial a number it gets this error...
WARNING[5126]: File chan_sip.c, Line 464 (retrans_pkt): Maximum retries
exceeded on call b40f8c0d-7d20-4b26-2f22-3af4420e5280 at 192.168.0.11 for seqno
40939 (Response)


my sip.conf is...
[grandstream2]
type=peer
host=dynamic
secret=grandstream2
reinvite=no
canreinvite=no
qualify=60


[grandstream2]
type=user
host=dynamic
secret=grandstream2
context=outgoing
reinvite=no
canreinvite=no
qualify=60

help