Need Help. Asterisk+h323

Good day!
Have trouble with Asterisk 1.2.12.1 + OpenH323 0.7.3
When proceeding call to PSTN, one ring passes on the phone where called, then Asterisk hangs. log:
2006-10-09 12:30:09 VERBOSE[14979] logger.c: – H.323 call to number@gateway.ip with codec g729
2006-10-09 12:30:09 VERBOSE[14979] logger.c: – Outbound H.323 call to destination ‘01879163712885@213.85.125.38’, channel ‘OH323/number@gateway.ip-f5d70d35’.
2006-10-09 12:30:09 VERBOSE[14979] logger.c: – Called number@gateway.ip
2006-10-09 12:30:09 DEBUG[14979] chan_zap.c: Requested indication 3 on channel Zap/1-1
2006-10-09 12:30:09 DEBUG[14902] chan_oh323.c: Executing REQ_CALL(number@gateway.ip)
2006-10-09 12:30:09 DEBUG[14902] chan_oh323.c: REQ_CALL(number@gateway.ip): Copying call token ‘ip$localhost/4357’ in call with ID f5d70d35
2006-10-09 12:30:11 DEBUG[14890] chan_sip.c: Auto destroying call '17b9714936b1917116bf5cee47eb91c1@127.0.0.1’
2006-10-09 12:30:11 DEBUG[14890] chan_sip.c: Auto destroying call '3609cd3550a5d718100a14a039abb6a1@127.0.0.1’
2006-10-09 12:30:15 VERBOSE[14996] logger.c: > H.323 call ‘ip$localhost/4357-f5d70d35’, exception CALL_ALERTED.
2006-10-09 12:30:15 VERBOSE[14979] logger.c: – OH323/number@gateway.ip-f5d70d35 is ringing

Can anybody help me?
PS Sorry for my clumsy english