I have a colleague with an issue with call merging.
This is the scenario. If I pick up the phone and call extension 500 and they answer. I say hold on one second, press the transfer button, call extension 525 and say I have Dave on the other line, press the transfer button again, then merge the calls it does not merge. However if I hang the phone up, the other two parties are online together but I am off. It will not merge all 3 of us, but will merge those twp parties.