Telephones for Noisy Data Centers

Jay Hennigan jay at
Wed Jul 1 17:25:33 UTC 2009

Robert E. Seastrom wrote:
> Jay Hennigan <jay at> writes:
>> Replace microphone element with noise-canceling microphone.  Best one
>> is Roanwell Confidencer available from Mike Sandman, Graybar, etc.
>> Also good is Walker - Clarity NoiseCensor or Allen-Tel GB117
>> (available from Graybar).
> +1 on the Confidencer - back when I worked for a trading firm, these
> +were standard issue on all phones on the floor.  They work great.

Indeed.  The other solutions work great for a single user on a cellular 
phone, but I prefer a plain old wired telephone with a handset for the 
emergency phone at a data center.  It's usable by anyone.  Ever try 
handing your bluetooth headset with custom earmold to the electrician 
working on the UPS?

Data centers tend to be noisy in more than just the acoustic spectrum, 
mobile reception often isn't the greatest.

Jay Hennigan - CCIE #7880 - Network Engineering - jay at
Impulse Internet Service  -
Your local telephone and internet company - 805 884-6323 - WB6RDV

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