Welcome to the ZyXEL Networking Glossary - your definitive source for descriptions of networking terms and ZyXEL's product features.
Select a letter or use the search box to look up a term.
"A VoIP signaling card serves as an H.248 signaling gateway. It terminates and processes H.248 protocol messages from the media gateway controller. The signaling card sends signal events (like ring, metering pulse, and various tones) to the media cards. T