FEATURE: Intro to IMS--Simplifying the network

By Andrew M. Seybold

We are hearing a lot about IMS these days, but what is it? Most of you probably know that IMS stands for Internet Protocol Multimedia Subsystem, and perhaps you know it is intended to replace the wireless network operator's current complex back-end architecture with simpler architecture based on routers and IP soft switches. Today's wireless networks grew up using massive hardwired switches based on SS7 (Signaling System 7), which was invented by AT&T to replace its older switching systems already in use.

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