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Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for voice calls for the delivery of voice communication sessions over Internet Protocol (IP) networks, such as the Internet.
Skype is a proprietary telecommunications application operated by Skype Technologies, a division of Microsoft, best known for VoIP-based videotelephony, videoconferencing and voice calls. It also has instant messaging, file transfer, debit-based calls to landline and mobile telephones, and other features. It is available on various desktop, mobile, and video game console platforms.
The landscape for instant messaging involves cross-platform instant messaging clients that can handle one or multiple protocols. Clients that use the same protocol can typically federate and talk to one another. The following table compares general and technical information for cross-platform instant messaging clients in active development, each of which have their own article that provide further information.
Google Talk was an instant messaging service that provided both text and voice communication. The instant messaging service was variously referred to colloquially as Gchat, Gtalk, or Gmessage among its users.
Skype for Business Server is real-time communications server software that provides the infrastructure for enterprise instant messaging, presence, VoIP, ad hoc and structured conferences and PSTN connectivity through a third-party gateway or SIP trunk. These features are available within an organization, between organizations and with external users on the public internet or standard phones.
Wi-Fi calling refers to mobile phone voice calls and data that are made over IP networks using Wi-Fi, instead of the cell towers provided by cellular networks. Using this feature, compatible handsets are able to route regular cellular calls through a wireless LAN (Wi-Fi) network with broadband Internet, while seamlessly change connections between the two where necessary. This feature makes use of the Generic Access Network (GAN) protocol, also known as Unlicensed Mobile Access (UMA).
This is a comparison of voice over IP (VoIP) software used to conduct telephone-like voice conversations across Internet Protocol (IP) based networks. For residential markets, voice over IP phone service is often cheaper than traditional public switched telephone network (PSTN) service and can remove geographic restrictions to telephone numbers, e.g., have a PSTN phone number in a New York area code ring in Tokyo.
Mobile VoIP or simply mVoIP is an extension of mobility to a voice over IP network. Two types of communication are generally supported: cordless telephones using DECT or PCS protocols for short range or campus communications where all base stations are linked into the same LAN, and wider area communications using 3G or 4G protocols.
Truphone is a GSMA-accredited global mobile network that operates its service internationally. The company is headquartered in London and has offices in ten other countries, being spread across four continents.
Jitsi is a collection of free and open-source multiplatform voice (VoIP), video conferencing and instant messaging applications for the Web platform, Windows, Linux, macOS, iOS and Android. The Jitsi project began with the Jitsi Desktop. With the growth of WebRTC, the project team focus shifted to the Jitsi Videobridge for allowing web-based multi-party video calling. Later the team added Jitsi Meet, a full video conferencing application that includes web, Android, and iOS clients. Jitsi also operates meet.jit.si, a version of Jitsi Meet hosted by Jitsi for free community use. Other projects include: Jigasi, lib-jitsi-meet, Jidesha, and Jitsi.
Google Voice is a telephone service that provides a U.S. phone number to Google Account customers in the U.S. and Google Workspace customers in Canada, Denmark, France, the Netherlands, Portugal, Spain, Sweden, Switzerland, the United Kingdom and the contiguous United States. It is used for call forwarding and voicemail services, voice and text messaging, as well as U.S. and international calls. Calls are forwarded to the phone number that each user must configure in the account web portal. Users can answer and receive calls on any of the phones configured to ring in the web portal. While answering a call, the user can switch between the configured phones. Subscribers in the United States can make outgoing calls to domestic and international destinations. The service is configured and maintained by users in a web-based application, similar in style to Google's email service Gmail, or Android and iOS applications on smartphones or tablets.
Skype offers a number of features based around calling, messaging, video chat, and file and screen sharing. The following is a partial list of Skype's features:
Unified communications (UC) is a business and marketing concept describing the integration of enterprise communication services such as instant messaging (chat), presence information, voice, mobility features, audio, web & video conferencing, fixed-mobile convergence (FMC), desktop sharing, data sharing, call control and speech recognition with non-real-time communication services such as unified messaging. UC is not necessarily a single product, but a set of products that provides a consistent unified user interface and user experience across multiple devices and media types.
The Samsung SCH-u470, or Juke and Verizon Wireless Juke, is a mobile phone offered exclusively by Verizon Wireless. It was announced on 2 October 2007, and released that same year on Q4 in three colors: red, teal, and navy (blue). The phone is a music player when closed, and can be swiveled for use of the mobile phone. It also has a VGA-resolution camera with a special "night shot" mode for taking photos in low-light conditions.
Voxofon was a VoIP company that developed mobile apps and communication services that utilised over-the-top (OTT) voice and messaging technologies for smartphones, tablets, and web applications. It was founded in 2008 and enabled free app-to-app domestic and international calls and texts, as well as provided the option for users to make international calls and texts to friends and family that use feature phones or landlines.
The 3CXPhone System is the software-based private branch exchange (PBX) phone system developed and marketed by the company, 3CX. The 3CX Phone System is based on the SIP standard and enables extensions to make calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services on premises, in the cloud, or via a cloud service owned and operated by the 3CX company. The 3CX Phone System is available for Windows, Linux, Raspberry Pi and supports standard SIP soft/hard phones, VoIP services, faxing, voice and web meetings, as well as traditional PSTN phone lines.
The Nokia Asha platform was a mobile operating system (OS) and computing platform designed for low-end borderline smartphones, based on software from Smarterphone which was acquired by Nokia. The platform inherits UI similarities mostly from MeeGo "Harmattan", and replaced Series 40 on Nokia's low-end devices. The user interface design team was headed by Peter Skillman, who had worked previously on webOS and the design of MeeGo for the Nokia N9.
Nimbuzz is a proprietary cross-platform instant messaging and social media and mobile payment developed by Kuraakani Online Private Limited, with the origins of its technology dating back to the early 2000s. As of March 2013, Nimbuzz had 150 million users in 200 countries. By April 2014, Nimbuzz was growing by more than 210,000 new registrations per day. In October 2014, now with over 200 million users, New Call acquired 70% of Nimbuzz, valuing the app at $250 million. Under CEO Sujit Acharya's leadership, Nimbuzz suite of applications enables users to enjoy end-to-end encrypted free calls, instant messaging, games, file sharing, social networking, mobile payments & movies on their mobile device. Nimbuzz has more than 3 million lines of code. Initially, Nimbuzz offered discounted calling rates to most countries in the world. The platform processed more than a billion call minutes and in excess of 100 billion messages a month.
TextFree is a mobile application and web service that allows users to send and receive text messages, as well as make and receive VoIP phone calls, for free over the internet. The service costs nothing because it is supported by ads, but users have the option of paying for an ad-free version with enhanced features. TextFree was developed by American telecommunications provider Pinger, Inc. It was released in 2006.
References
- ↑ "MO-Call IM - for Windows Live (MSN), Yahoo, ICQ, Facebook". imessengr.net. Retrieved 2010-10-09.
- ↑ "MO-Call Mobile VoIP Service Review - Cheap International Calls". About.com. Retrieved 2010-10-09.
- ↑ "Morodo bringing its low-cost calling service MO-Call to the iPhone". intomobile.com. Retrieved 2010-10-09..
- ↑ "MO-Call supports the Blackberry". berryreview.com. Retrieved 2010-10-09..
- ↑ "MO-Call App Review". theinewsblog.com. Archived from the original on 2010-10-24. Retrieved 2010-10-11.