dual-tone signaling
61Digital AMPS — IS 54 and IS 136 are second generation (2G) mobile phone systems, known as Digital AMPS (D AMPS). It was once prevalent throughout the Americas, particularly in the United States and Canada. D AMPS is considered end of life, and existing networks …
62japan — japanner, n. /jeuh pan /, n., adj., v., japanned, japanning. n. 1. any of various hard, durable, black varnishes, originally from Japan, for coating wood, metal, or other surfaces. 2. work varnished and figured in the Japanese manner. 3. Japans,… …
63Japan — /jeuh pan /, n. 1. a constitutional monarchy on a chain of islands off the E coast of Asia: main islands, Hokkaido, Honshu, Kyushu, and Shikoku. 125,716,637; 141,529 sq. mi. (366,560 sq. km). Cap.: Tokyo. Japanese, Nihon, Nippon. 2. Sea of, the… …
64African American literature — ▪ literature Introduction body of literature written by Americans of African descent. Beginning in the pre Revolutionary War period, African American writers have engaged in a creative, if often contentious, dialogue with American letters.… …
65Apple Inc. — This article is about the technology company. For other companies named Apple , see Apple (disambiguation). Apple Inc …
66Voice over Internet Protocol — (VoIP, IPAEng|vɔɪp) is a protocol optimized for the transmission of voice through the Internet or other packet switched networks. VoIP is often used abstractly to refer to the actual transmission of voice (rather than the protocol implementing… …
67Military Affairs — ▪ 2009 Introduction Russia and Georgia fought a short, intense war in 2008, fueling global fears of a new Cold War. On August 7 Georgia launched an aerial bombardment and ground attacks against its breakaway province of South Ossetia.… …
68Robert E. Lee — This article is about the Confederate general. For other uses, see Robert E. Lee (disambiguation). Robert Edward Lee …
69Sexual selection — This article is about the evolutionary concept. For the selection of the sex of offspring, see sex selection. Goldie s Bird of paradise: Ornamented male above; female below. Paradesia decora by John Gerrard Keulemans (d.1912) Sexual selection, a… …
70Progesterone — Systematic (IUPAC) name Pregn 4 ene 3,20 dione …
