Extensions)

The predominant IM standard. SIMPLE is an extension of SIP (RFC 3261) to address the

suite of services the IETF refers to as Instant Messaging and Presence (IMP). SIMPLE is compliant with IETF specifications for Instant Messaging/Presence Protocol Requirements (RFC 2779) and the Common Profile for Instant Messaging (CPIM) specification (RFC 3860). See also CPIM, IETF, presence, protocol, and SIP.

• channel-associated signaling (CAS)
• channel bank
• channelized voice over DSL (CVoDSL)
• channel service unit (CSU)
• channel width
• CHAP (Challenge Handshake Authentication Protocol)
• character
• character-oriented protocol
• chat room
• check bit
• checksum (summation check)
• chip
• chip rate
• chromatic dispersion
• chrominance
• C-HTML (Compact HyperText Markup Language)
• churning
• CIC (Carrier Identification Code)
• CIC (Carrier Identification Code)
• CIDR (Classless Inter-Domain Routing)
• CIDR (Classless Inter-Domain Routing)
• CIF (Common Intermediate Format)
• CI II (Computer Inquiry II)
• CIP (Classical IP over ATM)
• cipher