I just started getting this error and its preventing me from having any incomming calls: chan_zap.c:7542 pri_dchannel: Ring requested on channel 0/2 already in use on span 1. Hanging up owner. PRI has been working fine. I didn't know anything was wrong until someone came and said their DID wasn't working. You call their DID, asterisk shows the message above and you get fast busy. But I can make outgoing calls no prob. I'm running the latest stable versions of libpri and zaptel and asterisk. any ideas? Matthew