Using 410's with BIS-10's. The speakerphone on all the phones will not work. My customer can hear the caller thru the speaker but they can not hear the customer.
I have tried to turn on and off the MIC button but no good. Is this a wiring issue?
I am using FP-1 in the 410's.
I have tried to turn on and off the MIC button but no good. Is this a wiring issue?
I am using FP-1 in the 410's.