Speakerphone (Bis) Or Hands Free Answer Intercom (Hfai) Capability - AT&T MERLIN LEGEND Release 3.0 Programming Summary Manual

Analog Multiline Telephone Without Built-in Speakerphone
(BIS) or Hands Free Answer Intercom (HFAI) Capability
Analog Multiline Telephone
Without Built-in Speakerphone
(BIS) or Hands Free Answer
Intercom (HFAI) Capability
Use this procedure to identify analog multiline telephones with flat membrane
buttons that do not have built-in speakerphones (BIS) or Hands Free Answer
Intercom (HFAI) capability. The models that must be identified are 5-Button,
10-Button, 34-Button, and 34-Button Deluxe analog multiline models with flat
membrane buttons.
Keep the factory setting for analog multiline models with raised plastic
buttons, including the following models: 10-Button HFAI, 34-Button with
speakerphone (SP-34), 34-Button with speakerphone and display (SP-34D),
BIS-10, BIS-22, BIS-34, BIS-22D, and BIS-34D.
This procedure is not necessary for MLX or single-line telephones.
10-12 Telephones