i. Key Global Telecom Indicators for the World Telecommunications Service Sector, International Telecommunications Union, http://www.itu.int/ITUD/ict/statistics/at_glance/KeyTelecom99.html, September 3, 2003.
ii. The Worldwide Camera Phone Market, Rober, Bitflux, July 28, 2003, www.bitflux.ch/english
iii William Lee, Mobile Cellular Telecommunications Systems , p.2, McGraw Hill, 1989.
iv Personal interview, Industry expert, 2 September, 2003.
v. Lawrence Harte, Cellular and PCS/PCN Telephones and Systems , APDG Publishing, pgs. 377-381.
vi William Lee, Mobile Cellular Telecommunications Systems , McGraw Hill, 1989, p.5.
vii William Lee, Mobile Cellular Telecommunications Systems , McGraw Hill, 1989, p.265.
viii. Cellular Radio, Analog and Digital Systems, Mehrotra, Pg 177.
ix. Asha, K Mehrotra, Cellular Radio: Analog and Digital Systems , Artech House, 1994,, pg 74.
x. Asha, K Mehrotra, Cellular Radio: Analog and Digital Systems , Artech House, 1994,, pg. 177.
1. D. M. Balston (Editor), R.C.V. MacArio, Cellular Radio Systems , Artech House, 1993, pg 77.
xi. Asha, K Mehrotra, Cellular Radio: Analog and Digital Systems , Artech House, 1994, pg. 193
xii. Mehrotra, Cellular Radio, Analog and Digital Systems, Mehrotra, pg. 186
xiii. Asha, K Mehrotra, Cellular Radio: Analog and Digital Systems , Artech House, 1994,, pg. 188.
xiv. Asha, K Mehrotra, Cellular Radio: Analog and Digital Systems , Artech House, 1994,, pg. 193.
xv Digital Cellular, Economics and Comparative Technologies, EMCI, May, 1993, pg. 75.
xvi Lawrence Harte, Cellular and PCS, The Big Picture, McGraw-Hill, 1997, Pg. 130