Difference between Services Aggregation & Integrated Services?

[voiper_99]

Hi,

I am just wondering, what is the difference between Services Aggregation Routers

and Cisco Integrated Services Routers?

Is the former specifically for WAN situations and the latter for LAN situations?

[owillins]

services aggregation offerings for WAN and MAN that combine with integrated services routers to offer secure, wire-speed delivery of concurrent data, voice, and video services