Cell companies using deep packet inspection to analyse data have been known to throttle voip calls to mobiles. I think the minimum std for voip is around 56k s

Cell companies using deep packet inspection to analyse data have been known to throttle voip calls to mobiles. I think the minimum std for voip is around 56k so you dont need much bandwidth, but data over mobile phone networks is typically a burst of data which is the opposite of landline networks. I could use freeswitch (asterisk rival) on 2.5g quite easily, but you really are at the mercy of a cell masts traffic management software, however in the android app store there are some apps which let you override the cell mast traffic management so you can remain attached to the cell mast of your choosing when you want to. That also helps you avoid being triangulated for location purposes. Voice to handset always had highest priority as traffic, then text and then data, but the last two may have changed priority in recent years.