nta: treat user-via and previously-added via differently
nta: treat user-via and previously-added via differently

Ignore-this: 16cb41414d78a13a72d98e82ed61afdc

darcs-hash:20090707180802-db55f-67c70dabdc8ac46b10dfaac9f024fc589aa91d55.gz

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