GE 27907 Series - Manual (Page 40)

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Handset
The TALK/CALL BACK and SPEAKER indicator buttons flash
when you receive a call and remain lit during a call.
The keypad and CID will also light when a call is received.
VMWI / Visual Ringer Indicator on Handset
IMPORTANT: In order to use this unit’s Voice
Mail Waiting Indicator (VMWI) feature, you
must subscribe to this service from your
phone company.
The VMWI indicator on the top of the handset flashes when
you receive a new message from your service provider. Also,
it serves as a Visual Ringer function. It will flash when there is
an incoming call.
Speakerphone Operation
.
NOTE: If you are using the speakerphone,
remain close to handset so the party you are
speaking to can hear you.
If you are using the handset and want to switch to the
speakerphone, press the SPEAKER button, press SPEAKER
again to end conversation.
If you are using the speakerphone and want to switch to
the handset, press the TALK/CALL BACK button, press TALK/
CALL BACK again to end conversation.