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  2. Cellphone surveillance - Wikipedia

    en.wikipedia.org/wiki/Cellphone_surveillance

    Cellphone surveillance. Diagram showing the operation of a StingRay device for cellphone surveillance. Cellphone surveillance (also known as cellphone spying) may involve tracking, bugging, monitoring, eavesdropping, and recording conversations and text messages on mobile phones. [1] It also encompasses the monitoring of people's movements ...

  3. Mobile phone spam - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_spam

    Mobile phone spam is a form of spam (unsolicited messages, especially advertising), directed at the text messaging or other communications services of mobile phones or smartphones. As the popularity of mobile phones surged in the early 2000s, frequent users of text messaging began to see an increase in the number of unsolicited (and generally ...

  4. TNT (cellular service) - Wikipedia

    en.wikipedia.org/wiki/TNT_(cellular_service)

    TNT (formerly known as Piltel, Mobiline, Phone Pal, and still unofficially known as Talk 'N Text) is a cellular service of Smart Communications in the Philippines. [1] By April 2000, Piltel launched its GSM brand, Talk 'N Text. Piltel also reported 16,590,737 subscribers to its GSM brand, Talk 'N Text, before its transfer to Smart.

  5. Short Message service center - Wikipedia

    en.wikipedia.org/wiki/Short_message_service_center

    For the weather satellite, see GOES-1. A Short Message Service Center ( SMSC) is a network element in the mobile telephone network. Its purpose is to store, forward, convert and deliver Short Message Service (SMS) messages. The full designation of an SMSC according to 3GPP is Short Message Service - Service Center (SMS-SC).

  6. Cell Broadcast - Wikipedia

    en.wikipedia.org/wiki/Cell_Broadcast

    Cell Broadcast ( CB) is a method of sending short messages to multiple mobile telephone users in a defined area at the same time. It is defined by the ETSI 's GSM committee and 3GPP and is part of the 2G, 3G, 4G LTE (telecommunication) and 5G standards. [1] It is also known as Short Message Service-Cell Broadcast (SMS-CB or CB SMS).

  7. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  8. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    A toll-free telephone number or freephone number is a telephone number that is billed for all arriving calls. For the calling party, a call to a toll-free number from a landline is free of charge. A toll-free number is identified by a dialing prefix similar to an area code. The specific service access varies by country.

  9. Telecommunications in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_in_the...

    This led to the Philippines has become the global capital of text messaging, which was a feature of the mobile phone that was ignored by other countries. Meanwhile, in 2001, the popularity of the text messaging in the Philippines has created a subculture called Generation Txt , where teenagers and young mobile professionals have developed their ...