ones ▁and ▁other ▁electron ics . ▁Un like ▁the ▁most ▁instant ▁mess aging ▁tools , ▁on ▁email ▁neither ▁the ▁users ▁nor ▁their ▁computers ▁are ▁required ▁to ▁be ▁online ▁simultaneously . ▁The ▁cost ▁of ▁using ▁email ▁in ▁company ▁var ies , ▁since , ▁for ▁example , ▁the ▁company ▁might ▁have ▁its ▁own ▁email ▁server . ▁ ▁Emp ir ical ▁studies ▁demonstrated ▁that ▁all ▁team ▁members ▁on ▁a ▁software ▁development ▁team ▁used ▁this ▁tool ▁effectively . ▁Un like ▁instant ▁mess aging , ▁email ▁messages ▁are ▁intended ▁to ▁be ▁more ▁stand - alone ▁and ▁less ▁sensitive ▁to ▁the ▁context ▁of ▁communication , ▁and ▁thus ▁producing ▁email ▁messages ▁requires ▁more ▁time ▁than ▁traditional ▁IM ▁messages . ▁ ▁Some ▁email ▁prov iders ▁are ▁G mail , ▁Out look . com ▁and ▁Pro ton Mail . ▁ ▁S ynchronous ▁tools ▁ ▁Audio ▁and ▁video ▁conference ▁Audio ▁and ▁video ▁conference ▁are ▁the ▁techn ologies ▁for ▁the ▁reception ▁and ▁transmission ▁of ▁audio - video ▁signals ▁by ▁users ▁at ▁different ▁locations , ▁for ▁communication ▁between ▁people ▁in ▁real - time . ▁These ▁type ▁of ▁tools ▁attempts ▁to ▁rep licate ▁the ▁rich ▁interaction ▁present ▁in ▁face - to - face ▁meet ings . ▁Rich ▁synchron ous ▁communication ▁technology ▁such ▁as ▁video - con fer encing ▁is ▁appropriate ▁for ▁highly ▁interactive ▁discuss ions ▁where ▁body ▁language ▁and ▁in ton ation ▁can ▁convey ▁the ▁degree ▁of ▁understanding ▁or ▁agreement ▁among ▁participants . ▁ ▁Video ▁conference ▁is ▁also ▁a ▁good ▁way ▁to ▁develop ▁trust ▁among ▁global ▁software ▁developers , ▁since ▁it ▁allows ▁team ▁members ▁to ▁form