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best websites for ims:
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books, organizations, vendors
(6 records)
overviews, papers
(6 records)
top ten, free stuff, & vendors for ims:
ims vendor guide
ims services guide
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Express Logic develops, markets and supports the ThreadX® real-time operating system (RTOS), NetX™TCP/IP networking stack, USBX™ USB stack, FileX® embedded file system, and PEGX™ GUI toolkit for embedded applications.
ThreadX is a royalty-free, full source code, small-footprint, low-overhead RTOS that is extremely easy to learn and use. ThreadX is one of the most widely deployed RTOS products in the world, with over 1.25 billion products based on ThreadX.
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 Definition: The IP Multimedia Subsystem (IMS) is an architectural framework for delivering internet protocol (IP) multimedia to mobile users.
It was originally designed by the wireless standards body 3rd Generation Partnership Project (3GPP), and is part of the vision for evolving mobile networks beyond GSM. Its original formulation (3GPP R5) represented an approach to delivering 'Internet services' over GPRS.
This vision was later updated by 3GPP, 3GPP2 and TISPAN by requiring support of networks other than GPRS, such as Wireless LAN, CDMA2000 and fixed line.
To ease the integration with the Internet, IMS as far as possible uses IETF (i.e. Internet) protocols such as Session Initiation Protocol (SIP). According to the 3GPP[1], IMS is not intended to standardise applications itself but to aid the access of multimedia and voice applications across wireless and wireline terminals, i.e. aid a form of fixed mobile convergence (FMC). This is done by having a horizontal control layer that isolates the access network from the service layer.
Services need not have their own control functions, as the control layer is a common horizontal layer.
Source: Wikipedia (http://en.wikipedia.org/wiki/IP_Multimedia_Subsystem)
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