update ur prl or choose prl thats the best for u
http://corolada.com/prl/
download them put them in ur phone
press ##775# enter ur msl code...(search for a prgram called getspc and enter ur hex esn that will give u ur spc(msl) code to get into ur epst settings)
click on update prl click browse and locate where u put the prl u wanna use
also navigate through the forum and go to htc vogue upgrades
go into consolidated rev a thread and download the titan radio..read the instructions carefully..becuz i dont know if it works for alltel.
but radios and prls improve reception.