1 Scope

24.1963GPPEnhanced Calling Name (eCNAM)Release 17TS

The present document specifies the stage three (protocol description) of the Enhanced Calling Name (eCNAM) supplementary service based on stage one description in 3GPP TS 22.173 [1]. It provides the protocol details in the IP Multimedia (IM) Core Network (CN) subsystem (see 3GPP TS 24.229 [2]) based on the Session Initiation Protocol (SIP) (see RFC 3261 [3]) where the eCNAM data is retrieved by the terminating network from trusted data sources.