I just upgrade my 3CX to v8 and noticed a change in how calls forward to my cell. Previously my main line's callerID would be passed on to my cell when calls were forwarded to it. As of v8, all forwarded calls are now showing up as coming from "10000". I traced through 3CX and the only place I use 10000 is for the portID of my Patton4960. This is very promising news to me! if 3CX can pass 10000, why can't it pass a variable set to the original callerID? Specs: 3CX: v8.09414.453 running on Server2003 R2 hosted on VMwareESX 3.5 PSTN: Patton Smartnode 4960 4.1 running R4.2 2008-09-11 T1: Digital PRI delivered from Time Warner VoIP: No VoIP providers configured.