Hello, we want to use a Snom D715 as a megaphone. We setup the 3CX paging code to *9 (default) and phone is answering correctly throw the internal speaker. We connected an external speaker to the RJ9 connector of the phone (used for headset) and we want the phone to set this as the default speaker instead of the phone integrated speaker. Phone has in advanced settings an option to set Type of Intercom Answer to Headset, but no effect... Any idea? Tx in advance.