Mobility Services 2-29
September 2008
Chapter 2 - MTM800 Product Information Manual 6866537D87-F
A terminal is capable of sending uplink SDS messages on the PDCH.
9 Mobility Services
9.1 Main Control Channel Frequencies
The terminal is capable of finding a wide range of main control channels and this is done by
maintaining 4 different lists that are scanned in order.
•List 1. This is a dynamic list of up to 32 discrete frequencies that is maintained by the
terminal.
•List 2. This is a static list of up to 32 discrete frequencies specified by the system operator
and entered during terminal programming via the CPS.
• Lists 3. A frequency range specification, using a specific offset, that can be preprogrammed
in the factory. The system operator can modify this range via the programming tool. The
terminal will scan all frequencies in 25kHz intervals in the specified range.
• Lists 4. An additional frequency range specification as above. Having 2 separate range
specifications allows for 2 non-contiguous blocks of frequencies or 2 different offsets.
9.2 Multi-System Operation
9.2.1 List of Allowed Networks
A terminal can hold a list of up to 32 ‘allowed’ network identities (MMCC/MNC) and registration on
any of these networks is performed using the terminal’s ISSI without migration signalling. The same
ISSI must be used on all networks.
The first entry of the network list must be the terminal’s Home Network and each entry can have an
associated name for identification purposes.
The terminal user has menu option functionality to limit the terminal’s registration to the Home
Network only, or to a selected network only and in either case the terminal will ignore the other
‘allowed’ networks.
9.2.2 Home Only Mode
If this option is selected, the terminal will only use the first entry in the list of allowed networks. All
other allowed networks if found first during power up, or during cell reselection will be ignored even
if they offer stronger or better signalling conditions.
9.2.3 Selected Network Mode
If this option is enabled, the user selects the required operational network from the allowed list of
networks. The terminal will then only register and operate on this network. All other allowed
networks if found first during power up, or during cell reselection will be ignored even if they offer
stronger or better signalling conditions.
9.2.4 Switching Between Network Modes
Using the menu feature, the user is able to switch between the following network modes:
• Home Only
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