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Multiple handset use
Push-to-talk (PTT)
Answer a PTT call
You can respond to a PTT call, as described below.
1.  When your device receives a PTT call, it beeps and shows Press and hold 
[PTT] to talk.
2.  When the other party is speaking, your speakerphone light is on, and your 
device shows:
 f PTT From HANDSET X To devices: X(therstX represents the initiating 
handset number, and the second X represents your handset number; a 
maximum of four handset numbers appear).
-OR-
 f PTT From Base 0 To devices: X (the X represents your handset number;  
a maximum of four handset numbers appear).
3.  Whenyourspeakerphonelightiso(thescreenshowsPress and hold [PTT] 
to talk), press and hold PUSH TO TALK on your handset or PT T/FLASH on 
your telephone base. You will hear a chirp. Speak towards the device.
 f While you are speaking, your device shows PTT To BASE 0 or PTT to 
HANDSET X (X represents the destination handset number) or PTT 
To devices: X (X represents the handset numbers of one or more 
destination handsets; a maximum of four handset numbers appear).
 f Your voice is broadcast to all destination devices.
Aerspeaking,releasePUSH TO TALK on your handset or PT T/FLASH 
onyourtelephonebase.Yourdevicewillbeep.Aerthebeep,ifyour
speakerphonelightiso,youcanpress and hold PUSH TO TALK on your 
handset or PTT/FLASH on your telephone base to continue speaking, or the 
destination device can respond.