you have access to a GSM network
the contract partner's GSM network coverage is available in the respective region
the ignition is switched on so that vehicle data can be transferred automatically
An emergency call can be initiated even if a breakdown assistance or MB Info call is active. This has priority over all other active calls.
Calls via the overhead control panel are only possible with an available mobile phone network.
More information on Mercedes me connect and further services can be found at: Mercedes me homepage