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MH120 Wireless Telephone 2-9
Mobile Handset 120 and Desktop Charger/Gang Charger User Guide - Revision 1
Answering an Incoming PBX Call During a PTT Call
A telephone call may be answered while in a PTT call session. To
announce an incoming call, the Wireless Telephone will ring with a low-
volume ring and display the system message.
Use the following steps to answer a call.
Step 1 Press Power On/Start Call. The PTT call session will be pre-empted
and no PTT audio will be heard.
Step 2 Press Power Off/End Call after the PBX call is over to go back on hook.
PTT goes out of pre-empted mode and becomes active again. If an
already active PTT call has not ended, the PTT audio starts playing
again.
If the user does not answer the telephone call by pressing Power On/
Start Call, the PTT display will be shown after the ring has stopped.
Making a PBX Call During a PTT call
To start a telephone call during a PTT call session, press the Power On/
Start Call key. This causes the two-way radio to be pre-empted as
described under “Answering an Incoming PBX Call During a PTT Call”.
Utilizing Status Indicators
Tabl e 2-3 discusses the status indicators in the MH120 Wireless
Telephone.
Table 2-3 MH120 Status Indicators
Status Indicator Names Descriptions
No Service Message
An alarm sounds and a descriptive message displays when
the Wireless Telephone cannot receive or place calls. You
may be outside of the covered area. Walk back into the
coverage area. The in-service tone indicates service is re-
established. If functionality does not return, note the error
message and contact your system administrator.
The battery icon displays and a soft beep will be heard while
the Wireless Telephone is in use whenever the Battery Pack
charge is low. User has 15-30 minutes of Battery Pack life
left.
Battery low
This message will display and an alarm will sound while the
Wireless Telephone is idle whenever the Battery Pack is
critically low. The Wireless Telephone cannot be used until
the Battery Pack is charged.
The voicemail icon indicates that you have a new voicemail
message.
Melody
A melody is played after the Wireless Telephone is powered
on for the first time following a completed charge (Charge
Complete).