asterisk users - Oct 2005 - How to setup parked/on-hold so sorresponding buttons on VoIP phones light up

We have Snom 190s in an office of about 30. Trying to use the 5 lit
buttons on the right to be used for parked calls/calls on hold. In other
words, want to be able to transfer someone to either an extension that
maps to the buttons or anyone on hold gets put into that "queue" of
lit
buttons so anyone else can pick up.

Anyone doing anything similar with the Snom 190s?

TIA




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