ISDN:

• access contention
• B channel
• bearer service
• broadband ISDN (B-ISDN)
• circuit transfer mode
• contribution
• customer access
• D channel
• demand service
• digital subscriber line (DSL)
• distribution
• distribution service
• event
• frame
• functional signaling
• H-channel
• hybrid interface structure
• interactive service
• interface functionality
• interface payload
• ISDN
• labeled channel
• labeled interface structure
• labeled multiplexing
• labeled statistical channel
• LAP-D
• messaging service
• network element (NE)
• network termination
• network termination 1 (NT1)
• network termination 2 (NT2)
• positioned channel
• post-production processing
• primary rate interface (PRI)
• reference configuration
• reference point
• reserved circuit service
• retrieval service
• R interface
• Signaling System No. 7 (SS7)
• S interface
• synchronous transfer mode
• teleaction service
• terminal adapter
• T-interface
• transfer mode
• transit delay
• T reference point
• U interface
• V reference point
• wide area network (WAN)