However, assuming voice calls have a higher priority, {HEAD ~ data calls} can be pre empted to satisfy {TAIL ~ subsequent voice calls}, if necessary, in a similar manner 
However , assuming voice calls have a higher priority , { HEAD ~ data calls } can be pre empted to satisfy { TAIL ~ subsequent voice calls } , if necessary , in a similar manner
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH