Very interesting. I think soon i gonna have to do something similar: connect a panasonic TDA200 to an elastix server. My goal is to have a main PBX using elastix with several extensions and keep the extensions that are already configure in the TDA200 (an hybrid solution may i say). All the external calls would be made through the elastix server but you should be able to call between extensions. I really appreciate if you could give a hint about this, for example, did you use a voip gateway card like KX-TDA0490 or something similar?, you said you used h323, how did you connect to elastix using this protocol?
Thank you very much in advance,
Cheers from Colombia
PS: I have experience using elastix but i don't know much about panasonic
