Enhanced Messaging Service

Enhanced Messaging Service (EMS) was a cross-industry collaboration between magic4, Ericsson, Motorola, Siemens and Alcatel among others, which provided an application-level extension to Short Message Service (SMS) for cellular phones available on GSM, TDMA and CDMA networks. EMS is defined in 3GPP Technical Specification 3GPP TS 23.040 (originally GSM 03.40).