Quote:
incoming call rings, but no audio on either side
outgoing call seems to be the same (I do not hear it ringing, but been told by the party that it rings) - no audio
random disconnect is an issue as well
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So the audio doesn't work at all and people are hanging up on you.
Check the audio connections at the ULF and at the radio unit.
Check the mute (active low) and TELON (active high) are going into the radio unit.