You'll have to be sure your Class 1 settings for your T1 ports match the circuits provisioning in terms of incoming DID and outgoing ground start trunks, specifically trunks/channels 9 thru 12. There seems to be a provisioning disagreement with these channels. Try disabling the Polarity reversal and using disconnect detection only. You may also have to change from WINK to IMMEDIATE mode depending on the carrier.

The IX-T1RCVR card has only 8 DTMF receivers on board, to handle incoming DTMF signaling on channels 1 thru 8. For channels 9 - 12 (and up to 16) you'll need an 8ERCV daughterboard. This won't be an issue if you never have more than 8 inbound calls at a time, but will cause routing problems if an inbound call hits channel 9- I'm not sure, but calls will probably default to the attendant in this case.

Sometimes the thoughts in my head get so bored, they go for a stroll through my mouth. This is rarely a good thing.