A system and a method for improving wireless communications between a call center and a vehicle. The system and method can reduce the number of wireless connections needed between a call center and a vehicle by using multimedia messaging service (MMS) messages to convey information therebetween. This obviates the need for the call center to make an initial wireless connection simply to alert the vehicle that it wishes to communicate. Instead, the system and method can convey information or push down content to the vehicle on a very first connection, which can reduce wireless connections and improve reliability.