About IMS

The IP Multimedia Subsystem (IMS) is an architectural framework for delivering Internet Protocol (IP) multimedia services. It was originally designed by the wireless standards body 3rd Generation Partnership Project (3GPP), as a 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.

Quotes about IMS

1. It's not a given that a 3G handset is IMS compliant.

   Keith Day in Femtocells land first in Japan

2. Operators want to get to LTE as soon aspossible, but recognize that they won't be ready with a full IMS solution in time

   Keith Mumford in Are Kineto for or against femtocells? - Think Femtocell

3. Japan is a world leader in mobile innovation so it should come as no surprise that SOFTBANK MOBILE is the first operator to deploy commercial 3G IMS-based femtocells. It's about more than providing people with the best mobile service at home though - it's about the new possibilities opened up by a full-speed, dependable mobile broadband experience.

   Chris Gilbert in Ubiquisys Chosen by NEC To Provide Femtocell Access Points For ...