Contact Book 3-101
September 2008
Chapter 3 - MTM800 Product Information Manual 6866537D87-F
25 Contact Book
This has the following sub-menus:
• Dialing Scheme.
• Private Call
• PABX List
• Phone List
25.1 Dialing Scheme
This option is important for the successful entry of ISSIs into the Private Call list.
Note: The Dialing Scheme is only associated with Private Call.
This option specifies how the user enters the TETRA Identity:
• Base MCC - Enters an up to 3-digit number representing the (home) country of the phone.
• Base MNC - Enters an up to 5-digit number representing the (home) network operator within
that country.
• Base ISSI - Enter the TETRA Identity.
• Mode - Enables or disables the Base ISSI field. To choose the mode, put the pointer into the
field, click on the arrow, and drag the pointer to the desired setting: Enable or Disable.
Base ISSI in this context is the base address of individual addresses displayed to the user. When
the user enters an individual address, the base address is added to the individual address before
sending it over the air interface.
Similarly, when an individual address is received over the air interface, the base address is
subtracted before displaying it to the user.
The service provider is given the flexibility to establish a different base address for a different
number of digits entered by the user.