Multiple handset use
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Push-to-talk (PTT)
PTT call to a group of handsets
When there are multiple handsets registered to the phone system, PTT 
supports one-to-group calls. PTT supports a maximum of one-to-four calls 
when 2 to 5 handsets are registered, and a maximum of one-to-three calls 
when 6 or more handsets are registered. The first 4 registered handsets will be 
able to use this feature.  
To call a group of handsets:
1. When the handset is not in use:
Press and hold PUSH TO TAL� until your handset screen shows 
Connecting to group...
  When the connection is made, both the caller and the destination parties 
hear a beep. The speakerphones on all other eligible handsets automatically 
activate. 
2. You need to press and hold PUSH TO TAL� when you want to speak. 
Speak towards the handset. Your voice is broadcast to all eligible handsets.
3. Release PUSH TO TAL� after speaking.
4. Any extension can reply (see Answer a PTT call).
Answer a PTT call
You can respond to a PTT call whenever the speakerphone light is off, as 
described below.
When your handset receives a PTT call, the handset beeps and the screen 
shows Press and hold [PTT] to talk. 
When the other party is speaking, your speakerphone light is on, and 
your handset shows PTT From HS X To HS X (the first X represents the 
initiating handset number, the second X represents your handset number; 
a maximum of four handset numbers appear).
When your speakerphone light is off (the screen shows Press and hold 
[PTT] to talk), press and hold PUSH TO TAL� on your handset. You will 
hear a chirp. Speak towards the handset. Your voice is broadcast to all 
destination handsets.
After speaking, release PUSH TO TAL�. Your handset will beep.  
After the beep, if your speakerphone light is off, you can press and hold  
PUSH TO TAL� to continue speaking, or a destination handset  
can respond.
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