Phone Module (PHM) - Vehicles With Infotainment Control Module (ICM) [2009-2017]: Function: Phone

Courtesy of VOLVO CARS CORPORATION

The phone module (PHM) (16/60) does not have its own menu keypad. It is controlled via the keypad of the climate control module (CCM) (4/6) or via the steering wheel buttons.

The climate control module (CCM) transmits menu navigation signals to the infotainment control module (ICM) (3/281) via the CAN network. The infotainment control module (ICM) then forwards the signals to the phone module (PHM) via the MOST network.

When using the menu via the steering wheel buttons information is transmitted from the steering wheel module (SWM) (3/130) to the infotainment control module (ICM) via LIN communication. The information is then transmitted to the phone module (PHM) via the MOST network.

Menu information is shown on the display on the infotainment control module (ICM). The information is transmitted from the phone module (PHM) to the infotainment control module (ICM) via the MOST network.

When the phone module (PHM) is started, when there are incoming calls or when the carphone is in use, a request is transmitted to the infotainment control module (ICM) to use the display.

Phone calls can be connected either via handsfree or via handset (model-dependent).

During calls via handsfree, the microphone and speakers connected to the integrated audio module (IAM) (16/1) and audio module (AUD) (16/105) are used. The phone module (PHM) transmits a request to the infotainment control module (ICM) to receive access to the speakers and microphone. The infotainment control module (ICM) transmits the request onward to the integrated audio module (IAM) and audio module (AUD). Communication between the phone module (PHM), infotainment control module (ICM), integrated audio module (IAM) and audio module (AUD) occurs via the MOST network.