India calling cards and phone cards to India from USA.

  India telephone system - supported by recent deregulation and liberalization of telecommunications laws and policies, India has emerged as one of the fastest growing telecom markets in the world; total telephone subscribership base exceeded 900 million in 2011, an overall teledensity of roughly 75%, and subscribership is currently growing more than 20 million per month; urban teledensity now exceeds 100% and rural teledensity is steadily growing; domestic: mobile cellular service introduced in 1994 and organized nationwide into four metropolitan areas and 19 telecom circles each with multiple private service providers and one or more state-owned service providers; in recent years significant trunk capacity added in the form of fiber-optic cable and one of the world's largest domestic satellite systems, the Indian National Satellite system (INSAT), with 6 satellites supporting 33,000 very small aperture terminals (VSAT); international: country code - 91; a number of major international submarine cable systems, including Sea-Me-We-3 with landing sites at Cochin and Mumbai (Bombay), Sea-Me-We-4 with a landing site at Chennai, Fiber-Optic Link Around the Globe (FLAG) with a landing site at Mumbai (Bombay), South Africa - Far East (SAFE) with a landing site at Cochin, the i2i cable network linking to Singapore with landing sites at Mumbai (Bombay) and Chennai (Madras), and Tata Indicom linking Singapore and Chennai (Madras), provide a significant increase in the bandwidth available for both voice and data traffic; satellite earth stations - 8 Intelsat (Indian Ocean) and 1 Inmarsat (Indian Ocean region); 9 gateway exchanges operating from Mumbai (Bombay), New Delhi, Kolkata (Calcutta), Chennai (Madras), Jalandhar, Kanpur, Gandhinagar, Hyderabad, and Ernakulam (2011).
  United States telephone system - domestic: a large system of fiber-optic cable, microwave radio relay, coaxial cable, and domestic satellites carries every form of telephone traffic; a rapidly growing cellular system carries mobile telephone traffic throughout the country; international: country code - 1; multiple ocean cable systems provide international connectivity; satellite earth stations - 61 Intelsat (45 Atlantic Ocean and 16 Pacific Ocean), 5 Intersputnik (Atlantic Ocean region), and 4 Inmarsat (Pacific and Atlantic Ocean regions) (2011).