Resources

Virtual Conferencing Glossary

 

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

X

X.21 - An ITU-T physical interface standard between data terminal equipment and data circuit-terminating equip-ment for synchronous V-series modems.

X.25 - A ITU-T protocol standard for packet-switched data networks. It is a bearer service in ISDN.