Our every day life is getting more and more dependent on wireless access to the desired private, business or machine-to-machine related services and applications. Among these, critical services put the highest requirement on service continuity, i.e. the probability of obtaining an uninterrupted service should be as close to one as possible. Multi homing can be used to increase the service continuity. We propose methods for how to derive the optimal trajectory of access points for a dual homed session in a multi operator multi technology wireless environment where the service continuity of the radio conditions is basis for the handover decisions.