nUser services
and terminals (as IN services: call last dialed...)
nStandards (IETF, IEEE, ITU-T ...)
nRouting and switching (unicast - multicast, devices)
nTransmission and links (as fibre, coax-cable.., RSVP)
nAccess and transport (terminals, local-loop techniques..)
nServers service (web,mail,ftp ...)
nSignaling (SS7, X.25,
Frame relay ...)
nNetwork management (as OMAP of SS7...)
nInterworking between networks (gateways, bridges ...)
nNetwork planning
n
IN: Intelligent
Network
IETF: Internet Engineering
Task Force
IEEE: the Institute of
Electrical and Electronics Engineers, Inc
RSVP: Resource ReSerVation
Protocol
ITU: International
Telecommunications Union
SS7: Signaling System
7
OMAP: Operation and
Maintenance Application Part