Any one know how to connect trixbox server to existing IP-PBX server? I have set up a Asterisk PBX server and now want to integrate it to my company’s current IP-PBX, then we no need to buy the IP phone and also can use the current Calling system, yet we still can save some money. Any website I can follow?
voip-info.org/ as a starting point.
search for your make/model of PBX, if it talks a language Asterisk can use then you should find enough information to get started.