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A valid phone number or email address is not required for registration & login. However, the mobile app serves as the primary device, due to the end-to-end encryption architecture. [120] Yes No No No Trillian: No Yes No No Yes Viber: Phone number No No No No WeChat: Phone number or QQ number No No No No No WhatsApp: Phone number No Yes No No No ...
Google Voice is a telephone service that provides a U.S. phone number to Google Account customers [3] in the U.S. and Google Workspace (G Suite by October 2020 [4]) customers in Canada, Denmark, France, the Netherlands, Portugal, Spain, Sweden, Switzerland, the United Kingdom and the contiguous United States. [5]
Toll-free telephone numbers in the North American Numbering Plan. Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing ...
Text messaging. A text message using SMS – the 160 character limit and difficulty of typing on feature phone keypads led to the abbreviations of "SMS language". A text message conversation on an iPhone. Text messaging, or texting, is the act of composing and sending electronic messages, typically consisting of alphabetic and numeric ...
[80] [81] WhatsApp's client application runs on mobile devices but is also accessible from desktop computers, as long as the user's mobile device remains connected to the Internet while they use the desktop app. [82] The service requires users to provide a standard cellular mobile number for registering with the service. [83]
Instant messaging (IM), sometimes also called "messaging" or "texting", consists of computer-based human communication between two users (private messaging) or more (chat room or "group") in real-time, allowing immediate receipt of acknowledgment or reply. This is in direct contrast to email, where conversations are not in real-time, and the ...
It was released as a standalone application independent of Android with the release of Android 5.0 Lollipop in 2014, replacing Google Hangouts as the default SMS app on Google's Nexus line of phones. [8] In 2018, Messages adopted RCS messages and evolved to send larger data files, sync with other apps, and even create mass messages. [9]
Threema is a paid cross-platform encrypted instant messaging app developed by Threema GmbH in Switzerland and launched in 2012. The service operates on a decentralized architecture and offers end-to-end encryption. Users can make voice and video calls, send photos, files, and voice notes, share locations, and make groups.