I need to test H.323 with Asterisk, and want to buy a (used) physical phone. I tried an Avaya phone but discovered that their flavour of H.323 is proprietary, and won’t work with Asterisk. (see this StackOverflow post
Before I waste more money, can someone recommend a model(s) that they know work, with Asterisk, out of the box. (It has to be H.323, not SIP)