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  2. Telephone numbers in China - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_China

    In mainland China, mobile phone numbers have eleven digits in the format 1xx-XXXX-XXXX (except for 140–144, which are 13-digit IoT numbers), in which the first three digits (13x to 19x) designate the mobile phone service provider. Before GSM, mobile phones had 6-digit (later upgraded to 7-digit) numbers starting with nine.

  3. WeChat - Wikipedia

    en.wikipedia.org/wiki/WeChat

    [6] [7] [8] WeChat has been described as China's "app for everything" and a super-app because of its wide range of functions. [9] WeChat provides text messaging, hold-to-talk voice messaging, broadcast (one-to-many) messaging, video conferencing, video games, mobile payment, sharing of photographs and videos and location sharing.

  4. 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.

  5. Text messaging - Wikipedia

    en.wikipedia.org/wiki/Text_messaging

    Text messaging, or texting, is the act of composing and sending electronic messages, typically consisting of alphabetic and numeric characters, between two or more users of mobile phones, desktops / laptops, or another type of compatible computer. Text messages may be sent over a cellular network or may also be sent via satellite or Internet ...

  6. National conventions for writing telephone numbers - Wikipedia

    en.wikipedia.org/wiki/National_conventions_for...

    All telephone numbers in Iran have 11 digits (initial 0 and ten digits). The first two or three digits after the zero are the area code. The possibilities are: (0xx) xxxx xxxx (for landlines), 09xx xxx xxxx (for cellphones) and 099xx xxx xxx (for MVNO ). When making a call within the same landline area code, initial 0 plus the area code must be ...

  7. Rich Communication Services - Wikipedia

    en.wikipedia.org/wiki/Rich_Communication_Services

    Website. www .gsma .com /futurenetworks /rcs /. Rich Communication Services ( RCS) is a communication protocol standard for instant messaging, primarily for mobile phones, developed and defined by the GSM Association ( GSMA ). It aims to be a replacement of SMS and MMS on cellular networks with a communication system that is richer and modern.

  8. Telecommunications in the Philippines - Wikipedia

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

    The telephone network in Iloilo City was operational by June 1, 1894. [2] The Philippine Islands Telephone and Telegraph Company is American-owned which started operations in 1905 in the present-day Metro Manila. In 1928, merged with Cebu, Panay, and Negros Telephone and Telegraph companies to form the Philippine Long Distance Telephone Company ...

  9. Chikka - Wikipedia

    en.wikipedia.org/wiki/Chikka

    Chikka, short for Chikka Text Messenger, was an Internet-based instant messaging application that supported free SMS or text messaging between online users and offline mobile subscribers. Chikka was released by Chikka Philippines, Inc. in 2000 and eventually established its connection with the country's network operators Smart Communications ...