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.
A voicemail system is a computer-based system that allows people to leave a recorded message when the recipient is unable to answer the phone. The caller is prompted to leave a message and the recipient can retrieve said message at a later time.
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.
Gizmo5 was a voice over IP communications network and a proprietary freeware soft phone for that network. On November 12, 2009, Google announced that it had acquired Gizmo5. On March 4, 2011, Google announced that the service would be discontinued as of April 3, 2011.
Jajah was a VoIP provider, founded by Austrians Roman Scharf and Daniel Mattes in 2005. The Jajah headquarters was located in Mountain View, CA, USA, and Luxembourg. Jajah maintained a development centre in Israel. On 23 December 2009, it was announced that Jajah had been bought by Telefónica through its subsidiary Telefónica Europe. In December 2013, Telefónica announced that Jajah would shut down at the end of January 2014.
Openwave Systems Inc. is a division of Enea. It provides video traffic management and 5G mobile products.
An SMS gateway or MMS gateway allows a computer to send or receive text messages in the form of Short Message Service (SMS) or Multimedia Messaging Service (MMS) transmissions between local and/or international telecommunications networks. In most cases, SMS and MMS are eventually routed to a mobile phone through a wireless carrier. SMS gateways are commonly used as a method for person-to-person to device-to-person communications. Many SMS gateways support content and media conversions from email, push, voice, and other formats.
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.
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.
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 (2001), Globe Telecom (2002) and Sun Cellular (2004). With up to billions of messages being exchanged between online and mobile communities worldwide through Chikka, it is probably the world's first commercially successful integration of web and mobile utilities.
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.
Ooma, Inc. is an American publicly traded telecommunications company based in the Silicon Valley, California area. Ooma offers communications services including Voice over IP (VoIP) calling for business, home and mobile users.
Jaxtr was a social communications company that melds together global calling, SMS, and social networking. Founded by Phillip Mobin and Touraj Parang in October 2005, Jaxtr uses Voice over Internet Protocol to offer competitive rates as well as free international and long distance calling. Some key differentiators for Jaxtr in its market include allowing phone-to-phone calls to and from any mobile and landline phones, offering social networking focused on voice, requiring no software downloads or access pins, and giving users local Direct Inward Dialing (DID) phone numbers. Offered in 56 countries, these numbers allow users in those countries to dial a local phone number which would ring a long distance or international destination phone. Jaxtr also offers users a set number of global SMS messages each month.
Acision was a privately held British mobile communications network infrastructure company engaged in messaging and charging systems that enable popular services such as Short message service (SMS), Multimedia Messaging Service (MMS), mobile internet browsing, mobile broadband, and voicemail. In particular, Acision specialised in providing IP messaging to over-the-top media services and other enterprises.
Big River Telephone Company, LLC is a telecommunications company located in the Midwestern United States. Big River Telephone is classified as a competitive local exchange carrier (CLEC) and is a wholesale digital provider of voice over Internet Protocol (VoIP) services to the cable industry.
IntelePeer is a privately held company based in Dania Beach, Florida and is a Communications Automation Platform (CAP) provider of voice, messaging, automation, applications, APIs, and analytics for enterprises.
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.
Upptalk was a proprietary voice-over-IP service and software application that provided mobile phone numbers in the cloud and allows users to call or text any phone for free whether or not the device receiving the calls and texts has the Yuilop application. The service was discontinued in 2017 and even its domain was abandoned.
Sinch AB, formerly CLX Communications, is a communications platform as a service (CPaaS) company which powers messaging, voice, and email communications between businesses and their customers. Headquartered in Stockholm, Sweden, the company employs over 4000 people in more than 60 countries.
Direct to voicemail, also called a voicemail drop, is a method in which a pre-recorded audio message is placed in a voicemail inbox without the associated telephone ringing first.
