To enable H.323/H.324 communication systems to communicate using G.722.1 and negotiate G.722.1 in a standard way, the capabilities must be defined. This requires defining the packetization (for H.323) and the generic capability to be defined. To accommodate these needs, it is proposed that a new annex, Annex A, be added to G.722.1. This annex details the packet format and the capability identifiers/parameters necessary in H.245.