I have CIX-100 with mostly DKT3000's. I can page all the phones.

I recently installed a sound system (a Speco PMM-120A PA amplifier)

The amplifier has a 600 ohm telephone paging input (with 3 lines; 'G,' 'Com,' and 'Hot').

The amp also has 'input level' and 'VOX Sens' adjustment dials.

Great! Now I should be able to broadcast the CIX page output over the loud speakers.

WIRED CONNECTION....
I connected the CIX-100, 600 ohm page output to the amplifier telephone paging input 'Com' and 'Hot' inputs.

LEVEL SETTINGS....
On the CIX I turned the page output trimpot all the way clockwise.
On the amp, I set the input level and VOX Sens to mid range.

I am playing background music on the PA, when I 'page all,' the music keeps on playing and I only hear the page from the telephone speakers.

so, what am I missing?
is there perhaps a setting for the CIX to enable the page output?
does the page output need to be added to the page all group with eManager?
Or perhaps I made some mistake with my configuration?