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Originally posted by Barrontel:
When you say SLT do you mean feeding an analog station into the CO port?
I'm not the OP, but what I think he meant was to have you connect an analog phone directly to the CO Lines. What I would recommend is connecting an analog phone to each CO Line and then connect the CO Lines to the system. If both the analog phones and the system phones start ringing with phantom rings, then it's an AT&T problem. If the system phones start ringing, but the analog phones don't ring, then the issue is with the system.

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Originally posted by Barrontel:
I'm assuming British Telecom, I'm not sure what a DACS is though, so what should I ask AT&T over here?
Digital access and cross-connect systems (DACS) are large matrix switches used to aggregate, groom, and redirect traffic on telecom networks. They usually handle Sonet voice traffic, as well as time-division multiplexed (TDM) leased lines. Data-networking technologies such as Asynchronous Transfer Mode (ATM) and Internet Protocol (IP) are gradually being added to some products.