Interfacing:

• cell relay
• data station
• data transmission circuit
• demarcation point (demarc)
• dial mode
• DTE clear signal
• EIA interface
• framed interface
• gateway
• interchange circuit
• interexchange carrier (IXC)
• interface
• interface functionality
• interface message processor (IMP)
• interface payload
• interface standard
• medium interface point (MIP)
• net radio interface (NRI)
• network interface
• network interface device (NID)
• network termination 1 (NT1)
• network termination 2 (NT2)
• optical interface
• point of interface (POI)
• point of presence (POP)
• POSIX
• primary rate interface (PRI)
• protocol translator
• R interface
• router
• service
• service access point (SAP)
• service data unit (SDU)
• S interface
• terminal adapter
• T-interface
• transparent interface
• T reference point
• U interface
• V reference point