Mobile telephony

Provision of telephone services to phones / From Wikipedia, the free encyclopedia

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Mobile telephony is the provision of telephone services to mobile phones rather than fixed-location phones (landline phones). Telephony is supposed to specifically point to a voice-only service or connection, though sometimes the line may blur.

Mobile phone tower
Mobile telephone antennas tower

Modern mobile phones connect to a terrestrial cellular network of base stations (cell sites), whereas satellite phones connect to orbiting satellites. Both networks are interconnected to the public switched telephone network (PSTN) to allow any phone in the world to be dialed.

In 2010 there were estimated to be five billion mobile cellular subscriptions in the world.[needs update]