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- E1 (Europe)
- 2 Mbps (32 channels at 64Kbps, with 2 channels
reserved for signalling and controlling)
- T1 (USA)
- 1.544 Mbps (24 channels at 64Kbps)
- SDSL
- Symmetric Digital Subscriber Line (same data
rates for upstream and downstream)
- ADSL
- Asymmetric Digital Subscriber Line (different data
rates for upstream and downstream)
- PSTN
- Public Switched Telephone Network. International
telephone system based on copper wires carrying analogue
voice data
- ISDN
- Integrated Services Digital Network.
International communications standard for sending voice,
video, and data over digital telephone lines or normal
telephone wires.
- Basic Rate Interface (BRI) two 64-Kbps B-channels
and one D-channel for transmitting control information.
- Primary Rate Interface (PRI) 23 B-channels and one
D-channel (U.S.) or 30 B-channels and one D-channel
(Europe).
- MPLS
- Multiprotocol Label Switching
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