Intercom Beep

[pmterp]

We have an intercom extension in our system that allows us to intercom call all extensions or individual. When our desk phones (yealink t26's and t28's) receive the intercom call, there is a tone, then the line is opened via speakerphone. I've not been successful in getting the W52 to do this. Whether the call is directly to this extension or to all extensions, the W52 unit automatically connects but there is no tone first and it is through the earpiece and not the speakerphone. Is there a way to change this to mimic the actions of the T26 and T28s?