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Push to Talk, Push to Cellular, Voice and Data IP Push Strategies, Market Shares, and Market Forecasts, 2007 to 2013
WinterGreen Research, Inc., Sep 2008, Pages: 444
It’s all about the Internet. Push to talk services implement push SIP session control, instead of using circuit switched end-to-end session control. Push technology promises to bring the next generation of communications services on wireless handsets. Push to talk service is an integral part of an IP multimedia communication portfolio
PTT session management is representative of the push technology market shifts, Push technology is a disruptive technology, push technology is more efficient. Data drives the adoption curve, voice services provide the revenue stream. Push to talk markets are forecast to achieve growth because the calls have subsecond call set up, the systems implement voice over IP, and there is no session to manage, or control. Systems are as useful across geographical locations as they are for families located in the next room. Motorola’s multinational PTT is an outdated technology, but relevant still as it integrates with more than 18.3 million existing PTT users throughout the Americas.
PTT service will use VoIP (Voice over IP) and SIP (Session Initiation Protocol) technology to set up and route the instant calls. These technologies leverage the mobile operator’s prior investments in wireless CDMA 1X data networking, since VoIP sends voice as data packets over wireline or wireless data channels. There is no need to set up a session using proprietary switch technology. The router controls the sessions.
A private line from Marseilles to Clarity’s secure data center in Naperville, Illinois will carry the packetized voice traffic as instant calls between the subscriber handsets and Clarity’s SIP-based switch. Qualcomm and Kodiak are among vendors anticipated to benefit from significant market growth.
If a user is involved in a PTT session and receives a cellular call, they receive a call waiting indication. They can answer the cell call, and then switch between the conversations. AT&T boasts the largest Push To Talk network in America, and its PTT service includes several differentiating features, including availability icons, quick group-calling and the ability to easily switch from a PTT session to a regular wireless voice call.
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