h1. H323 protocol

{{>toc}}

h2. Supported protocols

* H.323 v4
* H.225
* H.245
* T.38
* RAS
* support for "Fast start" procedure
* H.245 tunneling.
  Additional modes of tunneling: 
  - cisco
  - QSIG

h2. Additionally

* support for devices under NAT;
* manipulation of ToS of frames;
* RTP bridging modes: 
  - proxy
  - translation
  - passing through jitter buffer

h2. Implementations

There are 2 different stacks on choice:

* OpenH323;
* Objective Systems; 

Both stacks could be used simultaneously and independently (to solve compatibility issue with attached equipment).

[[Протокол H323|Русский перевод]]