Can a PRI card be used with POTS service to control Outbound Caller ID? Just does not sound right. We use 5 analog lines with a Toshiba Strata CIX40.
Besides the fact that a PRI card won't fit in a CIX 40, using a PRI card for POTS lines will work about as well as playing a vinyl record in a CD player.
Unless I have been greatly misinformed for the many years, you can not out pulse Caller ID info on analog trunks. The only thing going out is the DTMF of the dialed number.
The only way you could control caller ID on a CIX-40 would be with SIP trunks. As a bonus you could get direct incoming numbers as well.
Some carriers (C-Beyond comes to mind) can show your BTN for all of your analog lines. AT&T is not one of them.