Selasa, 22 Desember 2009

GLOBAL STANDARS, THE KEY ENABLER FOR THE NEXT GENERATION NETWORK

Changing Telecom Trends
- Fixed line usage is reducing dramatically for "classical" services
- Mobile use is increasing steadily even though penetration is already high
- Broadband internet deployment shows a rapid growth trend


IMS The flatform for confergences
- IMS at the heart of next generation convergen net
work
- Mobile SIP-based IMS (IP-based multimedia subsystem) is the core of both 3GPP (GSM evolved) and 3GPP2 (CDMA evolved) networks...this is not simply a european view.
- Tomorrow's entire multimedia mobile world will be "IMS" based.
- SIP (Sesion Initiation Protocol) based IMS is IP end-to-end (Aplications and services can be supported seamlessly across all networks)
- SIP is also at the heart of the internat

 What is "IMS"
- IP Multimedia subsystem is defined by 3GPP
--- IMS Standards define a network domain dedicated to the control and integration of multimedia services
--- IMS is defined by 3GPP for release 5 onwards
- IMS builds on IETF protocols
--- Based upon SIP, SDP, COPs, and diameter protocols
--- 3GPP have enhanced these IETF protocols for mobility
- IMS in short
--- Open-Systems architecture that support a range of IP-Based services over the PS domain, employing both wireless and fixed access technologies