Currently have an IP Office with essential edition license using version 10.1 software. Set up group paging with allsets in the group. Programmed dial paging feature under user rights for that group everything works . Dial Paging sometimes and get a noise over the telephone speaker. I have found that one of the speaker buttons is engaged. To clear press the button or unplug and plug back in which clears the issue. This happens on random phones and may not happen for weeks at a time. I have also had this occur on an 11.0 system as well.