Talk Time Limit; Call Restoration In Private Call; Call Modification; Assistance Call - Motorola MTP830 S Product Information Manual

30 | Services and Features
call setup. In addition, the radio allows the SwMI to modify the call setup to direct. This modification enables the
infrastructure to generate the progress tones.

Talk Time Limit

In a simplex call, the radio limits the time you can continuously talk in a group call without interruption, according to
a provisioned value. You are warned a short time before the talk time expires. The timer is provisioned per talkgroup
folder.

Call Restoration in Private Call

If the radio roams while you are the transmitting party in a private call, the announced cell reselection is employed (if
possible). Call restoration procedures are performed in the new cell.
If you are not the transmitting party, the unannounced cell reselection is employed, followed by call restoration
procedures.

Call Modification

Call Modification is a feature that allows your service provider to modify the call in order to optimize it and adjust to
a current situation.
Modification can cover:
• Call priority – modified during call setup.
• Call type – modified during call setup.
• Call encryption – modified during an ongoing call (but not in the transmission phase).
When the call is modified, your radio displays Call Modified message.
When a recently modified call requires the PTT button to transmit, your radio displays Call ModifiedUse PTT.
All modifications are made by your service provider and the radio only follows them. You have no influence on
ongoing call modifications.
When call priority is changed to emergency:
• The display indicates that an Emergency Group Call has been received.
• The radio plays a special audio alert.
Note: If a Group Call is modified into an Emergency Group Call, no emergency related features are
triggered.
If call modification requested by your service provider cannot be followed by the radio (due to its settings), the radio
rejects it and displays Service Not Available message.

Assistance Call

Assistance Call feature helps you to call for assistance during normal and non-critical situations. Starting an
Assistance Call means starting a private call on a configured ISSI number. Assistance Call destination address and
priority can be configured in the codeplug. This feature is only supported in TMO mode.
Assistance Call can be a simplex or duplex call depending upon your service provider settings. An Assistance Call is
full-duplex when you start the call using radio menu. When you type the number and press PTT, then your radio starts
a half-duplex call, but if you type the number and press SEND, then the call is duplex.

DMO Individual Call Presence Check

If the other party is listening, the Presence Check feature allows the user making a DMO private call to have a
confirmation. This is important in situations where it is crucial that the message gets through. A radio with Presence
Send Feedback | |