olemus
ITU standard (alates 1996), mis ühildab videokonverentssidet
ja määratleb protokollid multimeediumside seansside korraldamiseks pakettedastusega võrgus;
pole seotud IP-ga, kuid enamik teostusi põhineb sellel,
eeskätt VoIP valdkonnas
=
an ITU-T recommendation that defines the protocols to provide audio-visual communication sessions on any packet network

ülevaateid
https://www.techopedia.com/definition/4478/h323

https://en.wikipedia.org/wiki/H.323

https://www.cse.wustl.edu/~jain/cis788-99/ftp/h323/index.html

https://www.packetizer.com/ipmc/h323/papers/primer/

https://www.packetizer.com/ipmc/h323_vs_sip/

http://hive1.hive.packetizer.com/users/packetizer/papers/h323/h323_protocol_overview.pdf

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/H-323/configuration/15-mt/voi-h323-overview.html

standardid
https://www.itu.int/rec/T-REC-H.323

https://www.ietf.org/rfc/rfc3762.txt