Panasonic KX-TD816NZ User Manual

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2.4
During a Conversation
66
Operation
2.4.7
Letting Other People Listen to the Conversation (Off-
Hook Monitor) [KX-T7433, KX-T7436 only]
You can let other people in the room listen to the conversation through the speaker while continuing 
the conversation using the handset.
 To set / cancel
This feature is only available during a conversation using the handset.
The SP-PHONE button light shows the current status as follows:
On: The voice is heard through the speaker.
Off: The voice is heard through the handset.
Press SP-PHONE.
T7433 / T7436
SP-PHONE