Industries & Professions /
Companies that provide telephone service can be classified by the types of service they provide. The major suppliers of telephone service are local telephone service providers, long distance carriers, competitive access providers, cellular providers, personal communications services (PCS) providers, and voice over Internet protocol (VoIP) providers. Some cable TV operators also provide telephone service. Long distance providers include AT&T, MCI, Verizon, and Sprint.
Subscribe for tips and tools to help you find and manage your ideal career.