IP Multimedia Subsystem<span> or </span>IP Multimedia<span> Core Network </span>Subsystem<span> (</span>IMS) is the term that refers and describes<span> an architectural framework for delivering IP multimedia services. </span>IMS is a standards-based architectural framework <span> defined by the 3rd Generation Partnership Project (3GPP) </span>for delivering multimedia<span> communications </span>services such as voice, video and text .
