Open ims installation
1062 mots
5 pages
IMS 101April 4, 2006 David J. Stelte VP of Engineering Clarity Communication Systems Inc. dstelte@claritycsi.com www.claritycsi.com
IP Multimedia Subsystem
Topics we’ll cover today:
• • • • • Network Evolution to IMS IMS Benefits and Applications IMS Technical Overview Who’s Playing in IMS Recommended Reading
Yesterday’s Network ss le re wi ce oi v ta da eo id v
application layer control layer
connection layer
user
Today’s Network
Yesterday’s Network
ce oi v
ta da
eo id v
ar ul ll ce
W N/ LA W
AN M
application layer control layer
Characteristics of Today’s Network • Some access-level commonalities • Separate control • Bundled services • Emergence of WLAN technology
connection layer
Access and Connection
user
Evolving Trends
• Mobile telephony, SMS, and Instant Messaging have been widely adopted • Mobile devices are becoming much more sophisticated and powerful • Traditional telecommunications is decreasing as a percentage of overall consumer wallet, while media and entertainment are showing accelerating growth • End users want to be able to access services anytime, anywhere regardless of device, location and network • Mass market adoption of applications is inhibited by today’s delivery model
Tomorrow’s Network – IMS
Today’s Network
Application Application application layer
Service Service
control layer
session control & delivery
IMS - Life After the “BitPipe” • Common control for access types & services • Common services • Apps become access type independent • Vertical “stove-pipes” replaced by Horizontal functions • IP based
connection layer
access
access
user
Benefits of IMS
• Interoperability with diverse networks • Enhanced Service Integration • Better Service Interaction • Access Independence • Common Functions • Standards Based Applications,
Applications,
Applications
More, Better, Faster!!
Some Popular IMS Applications
FMC
PTT over Cellular