outbound.c: Do keepalives even when no NAT was detected
outbound.c: Do keepalives even when no NAT was detected

darcs-hash:20071002145122-5b6ca-fa6ca796f570f6dc05e1d536bd43a94ef6311fcd.gz

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