module ue 201 has low cost and no rf coexistence interference however ue 201 only supports one voice call if sim 1 has voice call then sim 2 cannot have any mt mo call ue 201 also requires gap to monitor paging signals fig2 further illustrates three functional modules 211 to 213 in the ue that carry out embodiments of the current invention the functional modules may be implemented by hardware firmware software or any combination thereof rrc configuration module 211 manages radio resource control rrc layer configuration and rrc connection establishment condition detection module 212 detects various triggering conditions that trigger the suspension or resuming of an ongoing rrc data connection for example when a ue detects certain conditions while having ongoing packet switch ps data the ue sends out a signaling connection release indication scri for ue requested ps suspension similarly when a ue determines to resume the previous active ps data transmission upon detecting certain conditions the ue initiates a resume procedure such as an rrc cell update procedure timer 213 starts timers associated with the suspension or resuming of the rrc data connection fig3 illustrates an example of a signaling connection release indication scri information element ie and an example of a cell update ie the original scri procedure defined in 3gpp rel 8 specification is for fast dormancy the scri ie is used by the ue to indicate to the umts network that one of its signaling connections has been released or to request the umts network to initiate a state transition to a battery efficient rrc state as depicted by table 300 the associated cause of the scri for fast dormancy is ue requested ps data session end without the scri it.