H.350 defines a directory services architecture for multimedia conferencing
for H.323, H.320, SIP and generic protocols. H.350 is based on the commObject
architecture developed by VidMid-VC,
the Video Middleware working group jointly sponsored by Internet2, ViDe
and the ViDe.net project funded by the National Science Foundation.
This architecture was submitted to ITU-T Study Group 16 in June 2002 and
was accepted as effort H.LDAP. H.LDAP was subsequently ratified in August
2003 as the H.350 series of Recommendations (standards).
Further information and sample code can be found at http://lab.ac.uab.edu/vnet/.
Also see the ViDe H.350 Cookbook:
Directory Services Middleware for Multimedia Conferencing v1.0
There are eight files related
to the draft ITU-T Recommendation
H.350 in support of directory
services for multimedia conferencing.
H.350 // Base document including
commObject superclass [PDF]
H.350.1 // H.323 protocol
H.350.2 // H.235 protocol
H.350.3 // H.320 protocol
H.350.4 // SIP protocol [PDF]
H.350.5 // generic protocols
H.350.6 // Directory Services
Architecture for Call Forwarding
and Preferences [HTML]
H.350.7 // Proposed Directory
Services Architecture for
In addition there are eight
LDIFs, referenced from the
individual documents as appropriate.
They are also provided here