textphone

In Europe, a printing telegraph service widely used by those with hearing or speech impair-

ments. Also generically known as TTY (TeleTYpewriter) and TDD (Telecommunications Device for the Deaf) in the United States, and minicom in the United Kingdom. See also telegraph and teletype.

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• n (nano-)
• NNI (Network-to-Network Interface)
• NN (Network Neutrality)
• NOC (Network Operations Center)
• node
• noise
• nominal
• non-blocking
• non-deterministic
• non-dialable toll points
• non dispersion-shifted fiber (NDSF)
• non-facility associated signaling (NFAS)
• non-line-of-sight (NLOS)
• nonpersistent carrier sense multiple access (Nonpersistent CSMA)
• Nonpersistent CSMA (Nonpersistent Carrier Sense Multiple Access)
• non-real-time (nrt)
• non real-time variable bit rate (nrt-VBR)
• non-repudiation
• non-return-to-zero (NRZ)
• non-wireline carrier
• non-wireline carrier
• Nordic Mobile Telephone (NMT)
• Nordic Mobile Telephone (NMT)
• normal
• North American Numbering Council (NANC)