Terminals 19 and 20 are correct. Disconnect the cable from the extenson port and plug in a single line phone or buttset. Does it ring the same way? If it does your problem is with the Partner system, either a programming or operational error.

After extension entered, speakers kept ringing after call ended. I have no idea what you are saying. What extension and how was it entered? What happens during the call? The night bell rings only after the call is ended? Does it operate normally when the CO lines ring?

-Hal

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