2-14 Services and Feature Description
6866537D87-F Chapter 2 - MTM800 Product Information Manual September 2008
• Alpha Recall
• Last Number Dialled
Direct Dial
The number of the called terminal is directly entered via the keypad.
Scroll Method
The terminal scroll buttons are used to scroll backwards and forwards through the address book.
Alpha Recall
Phone numbers can be found in the address book using the Alphabetic search feature.
Last Number Called
When entering private mode, the last number called is display, press PTT to redial the number.
3.1.3 Initiating a Private Call from the Contact Book
After defining the target address, the user can initiate the call in 1 of 2 ways:
1. Pressing the PTT button will initiate a half duplex call.
2. Pressing the <send/end> button will initiate a full duplex call. This button is also used to clear
down both types of call.
3.1.4 Short Number Dial
This enables a user to enter only part of a number for private call setup.
3.1.5 Receiving a Private Call
Incoming private calls can be either half-duplex or full-duplex. On receipt of a direct call setup (half
duplex), the terminal will immediately join the call and sound the received audio. Receiving a full-
duplex call setup will cause the terminal to ring using the selected phone ring style or will cause the
terminal to vibrate. Once the user takes the call by pressing <send/end>, the full-duplex call is
established.
3.1.6 Talk Time limit
In a half-duplex call, the terminal will limit the amount of time the user can continue to talk (=
transmit) according to a provisioned value. The user will be warned a short time before the talk time
expires.
Benefits:
❏ Prevents blocking of a Talkgroup when the Push to Talk button hangs on a terminal by
accident or if a user intentional tries to block this group.
3.1.7 Terminating a Private Call
The user will be given the ability to terminate a half-duplex or full-duplex private call by pressing the
<send/end> key.
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