FirstSource,
This is a bit old school, and as crazy as it sounds, but you can always open the phone and clip your speakerphone leads. (
Obviously voiding any warranty you may have)
We do this for an entirely different reason (
and usually to only one phone) As you may or may not know the Mitel 5485 IP Paging unit is not equipped to be configured for "
Teleworker" mode. So what we'll do is take one phone (
Usually a Mitel 5304 IP Phone) void its warranty and make a paging solution. (
If anyone is interested please see the attached) AGAIN, DOING THIS WILL VOID THE PHONES WARRANTY! DO SO AT YOUR OWN RISK!
We've configured a dozen or so of these solutions where we couldn't add the Mitel 5485 Paging Unit, and they've all worked out great! Anywho, my two cents.
Thanks,
-Iron