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