[Asterisk-Users] register problem of iaxcomm

[xf du]

I try to use iaxcomm(run in win2k) connect to asterisk server,but registration refused.
who know why?
the following is my iax.conf and debug messages
[1003]
type=user
username=1003
secret=1000
context=asterisk-test
host=dynamic
qualify=no
;auth=md5
;trunk=yes

*CLI> iax2 debug
IAX2 Debugging Enabled
*CLI> Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: RE
   Timestamp: 00003ms  SCall: 11800  DCall: 00000 [172.17.1.172:4569]
   USERNAME        : 1003
   REFRESH         : 300
Nov 10 06:12:45 NOTICE[131080]: chan_iax2.c:3865 register_verify: No registrati)
Urgent handler
Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 001 Type: IAX     Subclass: REGREJ
   Timestamp: 00010ms  SCall: 00001  DCall: 11800 [172.17.1.172:4569]
   CAUSE           : Registration Refused
Urgent handler
Rx-Frame Retry[ No] -- OSeqno: 001 ISeqno: 001 Type: IAX     Subclass: ACK
   Timestamp: 00010ms  SCall: 11800  DCall: 00001 [172.17.1.172:4569]
Urgent handler




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