Fixed timing problem when testing nat binding change.
Fixed timing problem when testing nat binding change.

darcs-hash:20060510065747-65a35-44f891be36c4d142d44888799985e33ffd0b394d.gz

unispeech/sofia-sip,jart/sofia-sip,unispeech/sofia-sip,erdincay/sofia-sip,BelledonneCommunications/sofia-sip,xhook/sofia-sip,jart/sofia-sip,xhook/sofia-sip,unispeech/sofia-sip,jart/sofia-sip,unispeech/sofia-sip,xhook/sofia-sip,BelledonneCommunications/sofia-sip,erdincay/sofia-sip,xhook/sofia-sip,BelledonneCommunications/sofia-sip,erdincay/sofia-sip,xhook/sofia-sip,erdincay/sofia-sip,BelledonneCommunications/sofia-sip