N123/9 | Telephone control unit |
P82.70-7887-04
Location
The telephone control unit is installed in the glove compartment.
Tasks
The telephone control unit has the following tasks:
Reception of the switch-on signal (wake-up) from the head unit (A26/17)
Communication with the head unit via WLAN and the WLAN antenna (A2/83)
Communication with the head unit via telematics CAN (CAN A) (status of the subscriber identification module (SIM) card)
Communication with a mobile phone via Bluetooth®
Communication with the mobile telephone network via the telephone antenna splitter (A2/109), the left telephone antenna (A2/102) and the right telephone antenna (A2/103)
If the telephone control unit is selected as a WLAN hot spot: Provision of the Internet connection for external devices
Structure
The telephone control unit has the following components:
Communications module
WLAN interface
Interface for Bluetooth®
Card reader for SIM card