Are any other folks using the Nortel Remote Agent Observe ( RAO ) card ? We have the RAO , Option 81C , CP 4.0 and SCCS 5.0 . The supervisors monitor dozens of calls each day , occasionally a call is recorded that appears to be blank when the call is played back . Upon further investigation , it looks like the call volume is so low the system recorded silence . When playing back these "silent" calls , I noticed that the sound level indicator in Media Player shows the call as nearly flatline ,with minimal spikes to indicate sound . Normally a recording will show the expected peaks and valleys on the level indicator .Of course the local vendor and Nortel are scratching their heads over this issue , all peps , patches and parameters are at the reccommended levels . The only thing that is left to do is to replace the card . Has anyone else experienced a similar issue ? Is anyone else even using this system or are we the only ones "lucky" enough to have this system ? As always , thanks in advance for your time and expertise .