I have a new install of a 2801 with 2 VIC3-4FXS/DID modules that are
terminating 6 analog DID Wink start trunks. The issue is that sometimes inbound calls work, and sometimes they don't. When they don't work it appears that we don't get all the DTMF digits (yet I have seen with my own eye's that telco IS passing them all). It could be a timing issue with Telco as when monitoring the trunks (with an in-line butt-set) telco is passing the digits but on failed calls it seems they are passing them before we fully answer. Telco has officially pointed the finger at me, I have a TAC case open but have yet to receive any new information from them.
It should also be noted that I have this same config running at another office on the same hardware and IOS, just a different telco. In this case telco is a 5ess switch on their side.