Phone Module (PHM)

Downloading software and replacing the control module

General
New software can be downloaded to the phone module (PHM). When ordering software the vehicle software and hardware are compared to Volvo's central database. If the comparison corresponds the new software is downloaded to the control module.
If the comparison between the vehicle and the Volvo central database does not correspond, the database is updated with the vehicle configuration, and then the software and any security codes (Security access code) is downloaded.
For further information regarding downloading, see Design and Function, Downloading Software.
The phone module (PHM) is located behind the center console.

Replacing phone module (PHM) with Volvo On Call
In addition to the software for the phone module (PHM) with Volvo On Call functionality, a unique security code is also downloaded with the software. When replacing the phone module (PHM) the security code is retrieved from the Volvo central database. A new phone module (PHM) has a generally known security code. The code is used to unlock the control module, and to program functions and to read off parameters. Unlocking is carried out automatically in the ordering version accessible in VIDA.
After software download the read off parameters are transmitted to the Volvo central database. Information about modification to the customer data for Volvo On Call are then transmitted further from the Volvo central database to the web portal that handles customer data for Volvo On Call. The information is also transmitted to the Volvo On Call Service Center via ftp (File Transfer Protocol).
The unique security code is programmed into the phone module (PHM) during software download.

The following parameters are read off and transmitted to the Volvo central database:
- GSM number for the subscription
- The security code for the unit (Security access code)
- The PUK code for the internal SIM card for Volvo On Call
- IMEI (International Mobile Equipment Identity), GSM unit serial number
- Version number on the GSM unit software
- Unit type.

Note! After replacing the phone module (PHM), the Volvo On Call functionality must be activated if the customer has an active subscription. This does not happen automatically during the order process.

Volvo On Call is activated either via software orders or via the keypad on the Infotainment control module (ICM). After the Volvo On Call functionality is activated, the phone module (PHM) will wait for information about the position of the vehicle for 0.5-20 minutes. The position is sent from the Aerial module (ATM) (-2006) or Multimedia module (MMM) (2007-), the MOST network. During this time, the car must be parked outdoors with no large obstacles, which could prevent the Aerial module (ATM) (-2006) or Multimedia module (MMM) (2007-) from establishing contact with the GPS satellites, obscuring it. If the phone module (PHM) is unable to receive a position within this time, the activation sequence will be cancelled. Volvo On Call Plus functionality switches to deactivated. After the phone module (PHM) has obtained the position of the car, the ON CALL button must be held in for at least two seconds to connect a voice call the Volvo On Call Service Center. This call is made to confirm the new vehicle data and to check that Volvo On Call is functioning correctly.
Because of the unique security code and the internal SIM card a phone module (PHM) with Volvo On Call functionality cannot be swapped from one vehicle to another.

Activating and deactivating Volvo On Call
It is also possible to activate or deactivate the Volvo On Call function by downloading software. The security access code must be retrieved from the Volvo central database. It is also possible to activate/deactivate the functionality via menu management. The instructions and activation code for this are available at the Volvo On Call � web site. If necessary (misuse of Volvo On Call for example) the network operator can cancel the subscription of the internal SIM card for Volvo On Call. After activation of the Volvo On Call functionality the same applies as for replacing a control module as regards searching for GPS satellites and connecting calls to the Volvo On Call Service Center.
If the Volvo On Call functionality is deactivated the user will be informed by text message. The text message will be displayed in the driver information module (DIM) at the start of every driving cycle (key position I).