Thank you!
This did get PSTN calls routed through the Obi202.
But now calls first get the AA (Obi attendant), and then get routed to both SP1 and SP2.
I already had GV set up on Obi202 SP1, so I modified the existing obitalk Inboundcallroute
{(290490111|200111111)>(xx.):SP1},{(290490035|200111111):aa},{ph,ph2}
to:
{(290490111|200111111)>(xx.):SP1},{(290490111|200111111):aa},{200111111:SP2},{ph,ph2}
Obviously my addition wasn't correct, it did not separate out the PSTN onto SP2->ph2.
If I bought an additional obi212 and linked it to the obi202, could I then preserve the callerID from the PSTN?