Complex sentence: Tellabs' customers include wireline, wireless and cable TV companies and government agencies--among them are Verizon Communications, BellSouth, NTT Communications of Japan, Telstra of Australia, Telkom South Africa, Telecom Italia and Vodafone.
Split into simpler sentences: Tellabs' customers include wireline, wireless and cable TV companies and government agencies. Among then are Verizon Communications, BellSouth, NTT Communications of Japan, Telstra of Australia, Telkom South Africa, Telecom Italia and Vodafone.