Enhanced Messaging Service (EMS)
Definition - What does Enhanced Messaging Service (EMS) mean?
EMS was initiated by a cross-industry venture involving Ericsson, Alcatel, Samsung, Motorola, and Siemens, among others.
Techopedia explains Enhanced Messaging Service (EMS)
EMS messages sent to non-compatible devices are displayed in a text format. However, these messages may not be readable, because additional data is present in the EMS format that may not be decoded by the non-compatible device.
The rise of MMS, interoperability issues and lack of support from many wireless operators led to the early obsolescence of EMS.