I have a customer who needs to be able to hit one button and page all phones and his PA speakers. I have a bogen uti1 as an IVR analog extension on an ip office 500v2, which works fine when you dial it's extension. I created a hunt group with all of the digital extensions plus the PA extension in it, and created a short code: Dial Paging -> 399 (hunt group). When I use the short code, it pages all of the digital stations, but doesn't activate the uti1.