Unify Openscape X5 with Bogen PCM200 paging system. PCMTIM PBX STATION RJ-11 jack is connected to 4SLAV 3-1 as analog device. The Bogen PCM answers the extension, mutes the BG music and I receive the 2 beep confirmation tone. I enter all zones '00', but when I speak, nothing on the PA. Connection then times out per PCM2000 default. Any ideas? Thanks in advance.