The current version is L4.1 and I remember that there were a lot of issues around communicating to CallManager back when L1.0 was released.Please refer to http://ftp.tandberg.net/pub/software/endpoints/personal_series/150/ for the software release no...
What version of software are you running on the TANDBERG 150MXP? I debug a lot of Gatekeeper/CallManager issues by running debug on the T150. It is a little different than running debug on a router. Telnet to the device. The default telnet password, ...