I found an article (http://www.3cx.com/blog/voip-howto/caller-id-processing-distinctive-ringing-alert-info/) that explains how to set up distinctive ringtones in 3CX. The Yealink documentation from Yealink isn't very good at all. In any case, the 3CX explanation only seems to explain about how to set up ringtones for international, national, and local calls. Has anyone set up distinctive ringtones for the Yealink T46G for internal extensions and incoming calls? All incoming calls from outside callers with one ringtone and all internal company calls a different one? If so, I would appreciate any help you can provide. Thanks much!