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