what is voip or voice over ip? Published 7 years ago • 218 plays • Length 3:27 Download video MP4 Download video MP3 Similar videos 3:07 panasonic utg300b shortcut key pages - training 5:00 ats25 how to use it with your pc 13:42 psse turotial -2 : creating the ieee 9-bus system in pss/e 7:33 how to install ees 6:33 what is voip?