A communication system for a vehicle includes a controller adapted to selectively execute an alternative periodic connectivity mode for communication between a user of the vehicle and a remote assistance unit. The vehicle is not connected to a wireless plan. The controller has a processor and tangible, non-transitory memory on which instructions are recorded. The alternative periodic connectivity mode is activated based in part on at least one automatic trigger and/or a request from the user. The controller is adapted to assign a distinct identifier to the vehicle during execution of the alternative periodic connectivity mode. The distinct identifier is defined by a plurality of parameters, including a connection time interval, an internet protocol address range and a host port. The internet protocol address range and the host port may be dynamically configured to remain disengaged unless given a system clearance.