I just got my Obi110 setup with Callcentric (prepaid and no incoming number). I want to set outbound calls to show the number of my landline phone for caller id. When I asked support they said:
"You can now pass these caller ID's to us using the following methods:
P-ASSERTED-IDENTITY
P-PREFERRED-IDENTITY
REMOTE-PARTY-ID "
But I can't find these in any of the Obi110 config pages (ITSP profile -> SIP, etc)...
Any advice would be appreciated.