URI: urn:ietf:params:xml:ns:im-iscomposing Description: This is the XML namespace for XML elements defined by RFC3994 to describe composition activity by an instant messaging client using the application/im-iscomposing+xml content type. Registrant Contact: IETF, SIMPLE working group, simple&ietf.org, Henning Schulzrinne, hgs&cs.columbia.edu