IMS security

IMS (IP Multimedia Subsystem) is a set of specifications to offer multimedia services through IP protocol. This makes it possible to incorporate all kinds of services, such as voice, multimedia a...
Text over IP
Text over IP (or ToIP) is a means of providing a real-time text service that operates over IP-based networks. It complements Voice over IP (VoIP) and Video over IP.Real-time text is streaming text tha...
Peer-to-peer video sharing
Peer-to-peer video sharing is a basic service on top of the IP Multimedia Subsystem (IMS).Early proprietary implementations might also run a simple SIP infrastructure, too.The GSM Association calls it...
Real-time text
Real-time text (RTT) is text transmitted instantly as it is typed or created. Recipients can immediately read the message while it is being written, without waiting.Real-time text is used for conversa...
Video Share
Video Share is an IP Multimedia System (IMS) enabled service for mobile networks that allows users engaged in a circuit switch voice call to add a unidirectional video streaming session over the packe...
Push-to-talk
Push-to-talk (PTT), also known as Press-to-Transmit, is a method of having conversations or talking on half-duplex communication lines, including two-way radio, using a momentary button to switch from...
Multimedia telephony
The 3GPP/NGN IP Multimedia Subsystem (IMS) multimedia telephony service (MMTel) is a global standard based on the IMS, offering converged, fixed and mobile real-time multimedia communication using the...
OMA Instant Messaging and Presence Service
The OMA Instant Messaging and Presence Service (IMPS) is an Open Mobile Alliance enabler for Instant Messaging and Presence. The Wireless Village consortium developed the first cut of the specificati...
Voice call continuity
The 3GPP has defined the Voice Call Continuity (VCC) specifications in order to describe how a voice call can be persisted, as a mobile phone moves between circuit switched and packet switched radio d...
Image Share
Image Share is a service for sharing images between users during a mobile phone call. It has been specified for use in a 3GPP-compliant cellular network by the GSM Association in the PRD IR.79 Image S...