since at first very few people will have my SIP information to reach me via free SIP on obi110 (but I might buy obi202 if not)
1st
Can I have the obi110 route the caller via PSTN to my not-smart mobile phone during work hours otherwise only obi110 phone rings?
instead or and
2nd
Can I allow the caller to be trusted and by default only ring obi110 phone allowing caller to dial back enter code and forward through PSTN to my mobile?
finally
can I apply CID# filtering to 1st so only certain callers will be PSTN forwarded to my mobile during those times otherwise everyone else rings obi110 phone if no answer then voicemail (iptel.org, or other)
oh and if caller is using obi110 or obi202 how would CID# filtering be adapted assuming they're also using free SIP same or different non-GV provider?