Multiple handset use
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Push-to-talk (PTT)
PTT call to multiple devices
When there are multiple handsets registered to the phone system, PTT 
supports one-to-group calls. PTT supports a maximum of one-to-five calls 
when one to five handsets are registered, and a maximum of one-to-four 
calls when six or more handsets are registered. The first four registered 
handsets will be able to use this feature. Other handsets can only use PTT for 
one-to-one calls. 
To call multiple devices:
Using a cordless handset:
1. You have three ways to call multiple devices. When the handset is not in use:
Press and hold PUSH TO TALK until the handset shows  
Connecting to group...
Press PUSH TO TALK. Press qCID or pDIR to choose Group. Press 
MENU/SELECT or press PUSH TO TALK then your handset shows 
Connecting to group...
Press PUSH TO TALK. Press TONE  and # (pound key). The handset 
shows Connecting to group...
When the connection is made, both the caller and the destination parties 
hear a beep. The speakerphones on all other devices automatically activate.
2. You need to press and hold PUSH TO TALK when you want to speak. 
Speak towards the handset. Your voice is broadcast to all devices.
3. Release PUSH TO TALK after speaking.
4. Any extension can reply (see Answer a PTT call on page 48).
Using the telephone base:
1. You have three ways to call multiple handsets. When the telehone base is 
not in use:
Press and hold PTT until the screen shows Connecting to group...
Press PTT. Press qCID or pDIR to choose Group. Press MENU/SELECT or 
press PTT then the telephone base shows Connecting to group...
Press PTT. Press TONE  and # (pound key). The 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 devices automatically activate.
2. You need to press and hold PTT when you want to speak. Speak towards 
the telephone base. Your voice is broadcast to all devices.
3. Release PTT after speaking.
4. Any extension can reply (see Answer a PTT call on page 48).
NOTE: After PUSH TO TALK on the handset or PTT on the telephone base is released, the PTT 
call remains open for a short time. If no one presses PUSH TO TALK on the handset or PTT on 
the telephone base within 10 seconds, the PTT call ends automatically.
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