Individual Short Subscriber Identity (ISSI). Using this scheme, an ISSI can comprise of a fleet number
part and a member part.
The ISSI of the radio is used to determine the leading digits for the digits omitted as in the following
scenario:
1 The radio has the following ID: 1234567
2 You enter: 890
3 The SSI sent is: 1234890
The following services can use the short SSI for identification of both the called and the calling parties:
• Duplex private call
• Simplex private call
• Group call
• Mobile status
• Short data bearer service
• Text message service
If you are provisioned with the capability of entering a real TETRA ISSI and you enter an ID of seven
digits, the number is interpreted as a real TETRA ISSI regardless of the short addressing scheme
used.
2.5
Dialing Methods
The radio supports multiple methods of selecting a number for an outgoing call.
• Using predefined One-Touch Buttons.
• Dialing from the favorite folders.
• Dialing from the address book.
2.5.1
Individual Dialing
The Individual Call feature consists of Telephone Interconnect feature and the Private Call feature.
To make both simplex and duplex individual calls, contacts must be pre-configured in the CPS. The
radio can still receive calls from other contacts which are not pre-defined in the CPS.
If the One-Touch Button is provisioned, you can call an individual by pressing and holding down one of
the programmable buttons.
2.6
Unified Address Book
The radio offers an address book facility, where multiple numbers are associated with a single name
tag. This facility presents an interface to the address book and provides a natural way to call an
individual who can be contacted in different ways.
Each individual can have up to six associated numbers:
• Private (a TETRA ISSI)
• Home (phone number)
• Mobile (phone number)
• Work (phone number)
MN002955A01-AA
Chapter 2: Services and Features
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