This Recommendation describes an LDAP directory services architecture for multimedia conferencing using SIP. In particular, it defines an LDAP schema to represent SIP User Agents (Uas) on the network and associate those endpoints with users.
ITU-T H.350.4-2003 history
2011ITU-T H.350.4-2011 Directory services architecture for SIP (Study Group 16)
2003ITU-T H.350.4-2003 Directory services architecture for SIP Study Group 16