since I changed from sx2000 to ICP 3300 the 3 way calling is not working properly I did a test in the morning and it took me 3 tries and then worked, I check class of service and station service assigment and everything looks good. I checked with a IP phone 5324 and a digital 4150. I can see in the display Trade or Release (5324) and on the 4150 a call is on HOLD and when I press the conference button it just swaps the calls on either phone. Any other place that I can check?
thanks