Operation

7.3.2HFP + AV

Table 7.2 shows how the buttons operate while the headset is in HFP Mode. It shows how the buttons operate depending on the state of the headset.

Table entries in italic describe the button functionality assuming an active AV stream.

Button/State

Init

Ready

Connecting

Connected

Incoming

Active

Outgoing

Call

Call

Call

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If there is no AV source connected replace avrcp calls with the non-italic calls

 

 

 

 

 

 

 

 

 

PLAY/PAUSE

Play/Pause

Play/Pause

Play/Pause

Play/Pause

Answer

Transfer

X

Short Press

X

X

X

X

Call

Audio

 

 

 

 

 

 

 

 

 

PLAY/PAUSE

 

 

 

Voice

Answer

Transfer

 

X

X

X

Recog.

X

Long Press

Call

Audio

 

 

 

Enable

 

 

 

 

 

 

 

 

STOP Short

Stop

Stop

Stop

Stop

Reject Call

Hang up

Hang up

Press

X

X

X

X

Call

Call

 

STOP Long

 

Last

 

Last

 

Hang up

Hang up

X

number

X

number

Reject Call

Press

Call

Call

 

redial

 

redial

 

 

 

 

 

 

 

Vol+ Short

Volume up

Volume up

Volume up

Volume up

Volume up

Volume up

Volume up

Press

X

X

X

Volume up

 

 

 

Vol+ Held

Volume up

Volume up

Volume up

Volume up

 

 

 

(Acted on

Volume up

Volume up

Volume up

X

X

X

Volume up

every 1s)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Volume

Volume

Volume

Volume

 

 

 

Vol- Short

down

down

down

down

Volume

Volume

Volume

Press

Volume

Volume

Volume

Volume

down

down

down

 

down

down

down

down

 

 

 

Vol- Held

Volume

Volume

Volume

Volume

 

 

 

down

down

down

down

Volume

Volume

Volume

(Acted on

Volume

Volume

Volume

Volume

down

down

down

every 1s)

down

down

down

down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Forward

Forward

Forward

Forward

Forward

 

 

 

(Long/Short)

X

X

X

X

X

X

X

Press

 

 

 

 

 

 

 

 

 

 

Backward

Backward

Backward

Backward

Backward

 

x

 

(Long/Short)

X

CVC

X

X

X

X

X

Press

 

Mode*

 

 

 

 

 

 

 

Table 7.2: Button Functionality in HFP Mode

CVC Mode* If CVC is compiled in the application, with each short button press the software toggles between HF, NR and PSTHRGH modes. This button is only operational if a connection exists and the device is not muted. When operational and the Backward button is pressed, the next mode will be selected and a tone will be played to the loudspeaker. The tone will identify the currently operating mode. The following indicates the tone mapping.

1 Beep, HF mode: Hands-Free is the combination of an AEC (Acoustic Echo Canceller with microphone Noise Reduction). Default mode for CVC.

2 Beeps, NR mode: Noise Reduction to the microphone send-out signal.

3 Beeps, PSTHRGH mode: Pass through mode where the audio is routed through the Kalimba, disabling Hands-free, effectively bypassing any audio processing.

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© Cambridge Silicon Radio Limited 2005

Page 19 of 24

This material is subject to CSR’s non-disclosure agreement.

 

 

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