To determine the Application and DECT version of a CellCom Mk II beltpack registered to a base station or Eclipse frame there are several ways to find the information
Method #1 You can find the correct versions, etc for your particular system in the release notes provided in the documentation folder on the CD you received with the system. But when the beltpack is on-line with the basestation, just go to the menu page and the INFO selection, then navigate to the BELTPACK VERSION item.
Method #2 When the beltpack is in search mode or when not yet registered, or when the antennae are not connected, just press the right hand button (the one with two raised dots on it) on the pack and you’ll get a new window with several codes on it… wait about ten seconds and the top line will change to reveal the Application code and DECT code for this beltpack.
Method #3Connect the beltpack to a PC running Tera-Term software
1.  Connect the beltpack to a PC running Tera-Term software (this program can be found on the CellCom Toolkit CD) via a PD-4007 (beltpack registration) cable.2.  Set up Tera-Term to a available com port, set up the serial port parameters as follows:
     Baud Rate:  19200     Data:           8 bit     Parity:         None     Stop:           1 bit     Flow Cntl:    None
3.  Power up the Mk II beltpack.  This will toggle a message to the Tera-Term terminal program, see below for an example of the actual screen: