AT&T AT&T manual Voice Terminals with HFUs, Voice Terminals without HFUs, 143

The set’s speaker turns on and the set “answers” the call.

—During the call, the called party can press the HFAI/Mic or MICROPHONE

button to mute the microphone temporarily and prevent the caller from hearing. Pressing the button again turns the microphone on again.

— T h e H F A I / B I S u s e r m a y p r e s s t h e S P E A K E R ( H F A I s e t ) o r t h e SPEAKERPHONE (BIS set) button to end the call. For V2 systems only: if the calling party hangs up first, this is not necessary.

●If only the AUTO ANS LED is on:

—The set generates a tone burst over its speaker to indicate an incoming call

(the calling party also hears this tone).

—

— Call setup is complete. However, the called party can hear, but not respond to, the calling party. To respond, the user must lift the handset or press the HFAI/Mic button on an HFAI set or press the MICROPHONE button on a BIS set.

— T h e H F A I / B I S u s e r m a y p r e s s t h e S P E A K E R ( H F A I s e t ) o r t h e SPEAKERPHONE (BIS set) button to end the call. For V2 systems only: if the calling party hangs up first, this is not necessary.

●If only the HFAI LED (or neither LED) is on:

—The HFAI feature is disabled. The call answering procedure is the same as for a standard MERLIN set.

If, during an HFAI call, the user decides to pick up the handset, the HFAI/Mic or HFAI LED will turn off. On an HFAI set, the user is not permitted to revert to hands-free operation. (Pressing the HFAI button while using the handset will simply disable the HFAI feature for subsequent calls.) A BIS set user may transfer a call from the handset to the speakerphone by pressing the SPEAKERPHONE button and hanging up.

Voice Terminals with HFUs

These sets do not have an HFAI button. To turn on the HFAI feature the user simply presses the AUTO ANS button; the green status LED lights.

After HFAI is activated, operation is exactly the same as for the BIS set except that the SPEAKERPHONE and MICROPHONE buttons and LEDs are on the HFU.

Voice Terminals without HFUs

The HFAI feature is activated by pressing the AUTO ANS button. A beep signal announces an incoming call and the SPEAKER LED lights. A one-way talking link is established from the caller to the terminal; the user can hear the caller but cannot converse. Lifting the handset connects the user to the caller.

Considerations

The user of a HFAI equipped station should always deactivate the HFAI feature when leaving the work area. If this is not done, incoming calls will be “answered”, but the callers will be talking to an unattended position.

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