We have a Cisco network that includes a CallManager (v4.1) as well as some manually programmed VoIP circuits using FXS, FXO and E&M cards. We have been successfully in implementing fax machines by using an ATA-186 under CallManager control but have not been successful implementing alarm system modems or credit card terminals. At our main Administration office, we receive all telephony services through a PRI delivered on fiber so we don't have a copper 1FB to use for the purpose - whatever we do has to go out the PRI on fiber.
Has anyone been successful with using Cisco hardware to deliver a credit card terminal to a PRI? Or an alarm system (which I assume has the same problem with negotiation since both are modems)?