User's Manual

Call 24ard
5.2.15 Hand free mode during the call
The user can press a dedicated key to enter hand free mode during the call (single call, or
multiparty call). And can also stop it.
5.3 Public Land Mobile Network (PLMN) management
5.3.1 Public Land Mobile Network
In idle state, the Handset displays the network name. If the Handset can’t identify the
network name, then it displays country code and network code.
5.3.2 PLMN list
The Handset manages three public land mobile network lists, separately available PLMN list,
prohibited PLMN list and Preferential PLMN list. If the Handset is rejected by a PLMN when
attempting to register on, it will automatically add the PLMN into prohibited PLMN list.
5.3.3 Selection of PLMN
5.3.3.1 Automatic
In automatic mode, if the Handset has just been switched on or has lost the current network,
it can automatically select PLMN again. The Handset will attempt to register on the home PLMN,
if such attempt fails, then it will try to register on other networks listed in the preferential PLMN
list. If it fails again, the Handset will randomly register a network listed in the available PLMN list.
If it still fails, then the Handset will try to register on other provided networks (receiving signal
strength shall be larger than –85dBm). If it fails, the Handset will randomly try registry in the
order of descending signal strength. During registry, if the user presses any key, “Register” prompt
will disappear. Any operation before registry succeeds will make the Handset give out “Fail”
prompt. After registry succeeds, the Handset will display the antenna icon and give out registry
success prompt sound.
5.3.3.2 Manual
If the user selects to manually register network, then the Handset will search for all available
networks. During this period, the screen will display network searching animation and then
display all searched networks, which are arranged in the following order:
• Home PLMN
• Preferential PLMN
• Other PLMN networks with signal strength bigger than –85dBm, arranged at random
• Other available PLMN arranged in the order of descending signal strength
If the user selects one of the above and press “OK”, the Handset will try to register on the
selected network. If it succeeds, the Handset will be solely registered on this network. This status
will be kept until the Handset is switched off. Once switched off, the Handset will switch to the
automatic selection mode. If registry fails, the Handset will also switch to automatic selection
mode.
5.4 Handset functions
5.4.1 Phonebook
The max storage capacity of handset phonebook is 2000 items.