Conferencing over IP <communications, standard> (CoIP) The {IMTC} Activity Group trying to standardise {IP Telephony} through the use of {ITU-T} {H.323}. The VoIP forum of the {IMTC} merged with the H.323 Activity Group in January 1999 to form the Conferencing over IP (CoIP) Activity Group. VoIP uses "VoIP Devices" as {gateways} to {route} voice {packets} over the Internet or {PSTN}. It uses {protocols} such as {SGCP} and its successor {MGCP}. (http://imtc.org/act_coipbody.htm). (1999-03-17)