I administer a Panasonic DBS 576 R5.2 and need to add an analog cordless phone to a group of phones that ring on incoming calls to a DID(PRI). I see in the table that it is directed to an extension 6008 which I assumed was an extension group pilot number but I only see the voicemail group (6000) if I do a CONF90 to check ext 6008 I get 0192 - my voicemail card is in cabinet 1 slot 9. Could that 6008 be an ACD?