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121Telephone Number Mapping — (ENUM or Enum, from E.164 NUmber Mapping) is a suite of protocols to unify the telephone numbering system E.164 with the Internet addressing system DNS by using an indirect lookup method, to obtain NAPTR records. The records are stored at a DNS… …
122NEC — For other uses, see NEC (disambiguation). NEC Corporation 日本電気株式会社 Type Public Traded as TYO …
123Cisco Unified Communications Manager — (CUCM), formerly Cisco Unified CallManager and Cisco CallManager (CCM), is a software based call processing system developed by Cisco Systems. CUCM tracks all active VoIP network components; these include phones, gateways, conference bridges,… …
124Bell-Northern Research — (BNR) was one of the world s premier research and development organizations in telecommunications, jointly owned by Bell Canada and Nortel Networks (then known as Northern Telecom ). BNR was based in Ottawa, Canada, with campuses at locations… …
125Mercury Communications — was a national telephone company in the United Kingdom. The company was formed in 1981 as a subsidiary of Cable Wireless to challenge the monopoly of British Telecom (BT) which was privatised in 1984. Mercury was the first competitor to BT, and… …
126Gandalf Technologies — Gandalf Technologies, or simply Gandalf, was an early data communications company, best known for their modems and terminal adaptors that allowed computer terminals to connect to a number of host computers through a single interface. The name… …
127Engset calculation — The Engset calculation is a formula to determine the probability of congestion occurring within a telephony circuit group. It was named after its developer, T. O. Engset. The level of congestion can be used to determine a network s performance as …
128Malicious Caller Identification — (MCI), also called Malicious Call Trace (MCT) or Caller Activated Malicious Call Trace (CAMCT) is a facility which enables a phone call recipient to mark a phone call as malicious (i.e. harassing, threatening, obscene, etc.) The phone system will …
