Communication

Communication

Telecommunication
If there is coverage, both verbal communication and data communication between the vehicle and the Service Center is done via AMPS.

Satellite
If there is no AMPS coverage, there is (only) data communication between the vehicle and the Service Center via satellite.

Other - Handling the PHM

NOTE: Be careful when removing/installing/storing the telephone unit, since the SOS and On Call functions are active despite the fact that there is no external power supply.

If the PHM is removed, the back-up battery should always be removed to prevent unintentional SOS and On Call calls to the Service Center.

Safety Services

Communication Activated by the SRS Control Unit







If a component (driver/passenger air bag, SIPS bag, IC inflatable curtain or belt tensioner) in the SRS system is activated, the following takes place:
- The SRS sends a signal to the PHM, via conventional wire and CAN, that a component has been activated.
- The telephone is activated in the Volvo On Call Plus service mode.
- Contact is established with the Service Center.
- The Service Center is in verbal contact with the driver/passenger and takes appropriate action for the situation at hand. If the driver/passenger is incapable of verbal contact, the Service Center decides who/what is to be contacted. The Service Center establishes verbal contact with the appropriate local emergency center/rescue service. The Service Center provides the local emergency center/rescue service with information about the vehicle position, vehicle status and driver data.
- Depending on how/whether the vehicle and the Service Center manage to establish verbal/data communication, the status is always displayed on the DIM. If, for example, only data communication is possible (that is, verbal contact is not possible) the message "Message received by On Call Plus" is displayed on the DIM.

Manual Activation of SOS Service
The driver can establish contact with the Service Center in situations such as, for example, an accident, threat or acute illness by:
- pressing the SOS button,
- selecting SOS service through menu selection.

The Service Center will maintain verbal contact with the driver, while appropriate action is being taken.

Services

Alarm







When the alarm is tripped, contact is automatically established with the Service Center.

The following takes place:
- CEM has triggered the alarm and, among other things, sent a signal to the UEM to activate the siren.
- In this position, UEM sends out a signal periodically on the CAN network about the fact that the alarm has been tripped.
- The PHM picks up the signal and automatically enters Volvo On Call Plus service mode.
- Contact is established with the Service Center after a certain period of time.
- The Service Center makes verbal contact with any driver, who then has to identify himself with a password. If the incorrect password, or no password is given, the owner is contacted.
- The owner obtains help from the Service Center on how to handle the matter, for example, reporting the theft to the police.

Tracking Initiated by Owner
The owner himself can initiate tracking of the vehicle by contacting the Service Center.

The following takes place:
- The owner contacts the Service Center and identifies himself with a password.
- The Service Center establishes contact with the vehicle, that is, with the PHM, which enters Volvo On Call Plus service mode.
- The PHM sends a continuous signal regarding, for example, the geographical position of the vehicle. How often this is done, is determined by a message which is sent from the Service Center to the PHM. The time interval may differ, for example, from every 30 minutes to once a week.
- The tracking time is determined by the customer and the Service Center.
- The loudspeaker is switched off.

Unlocking from the Service Center, Vehicles without Contact in Trunklid Handle







- The owner contacts the Service Center and identifies himself with a password.
- The owner and the Service Center determine the time at which the vehicle will be unlocked.
- The Service Center sends a signal to the PHM.
- At a fixed time, the PHM sends a request to the CEM via CAN to deactivate the alarm and unlock the vehicle.
- The PHM sends confirmation to the Service Center that the vehicle has been unlocked and the alarm deactivated.

Unlocking from the Service Center, Vehicles with Contact in Trunklid Handle
- The owner contacts the Service Center and identifies himself with a password.
- The owner and the Service Center determine the time interval during which the vehicle will be unlocked.
- The Service Center sends a signal to the PHM that the vehicle should be unlocked at a specific time.
- When the contact in the trunklid handle is closed, the REM sends a signal to the PHM.
- If the REM signal conforms to the time interval determined by the customer and the Service Center, the PHM sends a signal to the CEM via CAN that the vehicle is to be unlocked and the alarm deactivated.
- The PHM sends confirmation to the Service Center that the vehicle has been unlocked and the alarm deactivated.