Hi, all. I've just had my T1 re-provisioned to ISDN. Everything comes up and seems to work fine, with the minor detail that there is no audio whatsoever. So: voice prompts are played, caller ID and DID information is seen and acted on, etc., etc., etc., but at no point is any audio heard on either in-bound or out-bound calls. Here, respectively, are my zaptel.conf, zapata.conf, and the dump of "pri debug span 1": http://pastebin.com/583049 http://pastebin.com/583050 http://pastebin.com/583060 Any ideas would be greatly appreciated. Note that I'm reasonably sure of the zaptel.conf and switch type. Thanks, -Ken