I have UCM 6.0 and have added a 4-Port FXS/DID card to a 1760 Router running IOS 12.3(14)T4. I have 4 Analog Trunk lines running into the card that carry our 20 DID block.
I have successfully registered the FXS card with UCM, but when I place a call on those trunk lines, I receive a fast busy. I have also tried adding wink start signaling, but when I do the card is rejected in UCM.
We are running SCCP from the phones to UCM and MGCP from UCM to the router.
Can anyone tell me where I have gone wrong?