Ok a couple of weeks ago the customer complained of only being able to receive one call at a time on every phone, (2 line 6731 Aastra Phones), I am using a PRI, and there are 17 available channels of Voice in and out of the PBX, I fixed the issue by enabling call waiting on all of the extensions and the phone calls came in how they were supposed to. All of my other installs have PRI's as well and do not have call waiting enabled, and have no problem taking more than one call if they are already on a line. The only reason I bring up the first issue which I never really fixed as I am not sure if Call waiting should be enabled, but now my follow me is acting strangely I know I enter the phone # correct the setting are correct but when I call a direct DID from the outside you hear the extension of the calling party pick up then you just hear Dial Tone like it grabbed an outside line and just connected that call and hung up on the caller. I have never had this issue before and this is 1.3 stable. Please keep in mind I look through forums and online for a couple of days by myself before I put a post here so I make sure the answer is right in my face. I am sure most of peoples problems are just minor modifications and I am sure that mine is one of them.