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Entering Local Area Service
When the MTM800E receives a Local Area Service 
indication from the system, the following occurs:
• The MTM800E sounds a tone.
• The display shows the “Local Area Service” message.
• Display icons and soft keys turn green.
• Any call in progress is dropped upon entering Local Area 
Service mode.
If configured by your Service Provider, this message/alert is 
periodically repeated to remind you that the MTM800E is still 
operating in Local Area Service mode.
The following features are available while the MTM800E is in 
Local Area Service:
• Registration
• Attachment
• Group Call
• Emergency Call
• Emergency Alarm
Exiting Local Area Service
When the link with the central network controller is re-
established, the MTM800E exits Local Area Service and the 
following occurs:
• The MTM800E sounds a tone
• Any call in progress during Local Area Service is dropped.
Packet Data
The Packet Data (PD) Service allows you to transfer data in a 
TETRA system using the Internet Protocol (IP). Check with 
your Service Provider for the availability of this feature.
For transferring data from a standard computer over the air 
connect the computer via the Active Data Cable GMKN1022 
with your MTM800E. Your Service Provider has to setup 
additional applications on your computer.