Telecommunications Tech Blog September 2014
Is it Noisy? You Don't need an Amplified
As one of the last companies manufacturing amplified handsets we get a ton of calls
from people looking for an amplified handset. The first thing we ask is whether
it's for someone who can't hear, or for a noisy area.
percentage of our customers don't know if it's noisy. They were just told to
order an amplified handset, or maybe that's just what the customer requested.
The problem with putting an amplified
handset in a noisy area is that it makes it harder to hear, not
The transmitter in the handset picks
up the background noise, the amplifier amplifies the background noise
when the wheel is turned up, and the background noise is even louder and it's
even harder to hear the person on the other end of the call.
All phones sold in the last decade
have a receiver amplifier built-in. Usually an up and down button on the base of
the set. If it's noisy and you turn up the volume on the set, the background
noise is increased along with the other party's voice. It's just as hard or
harder to hear.
When you put a handset with a noise
cancelling transmitter on the phone it cuts out most of the background noise. When the volume is turned up the person on the other end is
easier to hear, not
We can put a noise cancelling
transmitter in most phone handsets, but not all. Some of them are designed to
look "cool" and are so small inside that we can't get a noise cancelling
transmitter in it.
For those phones that we can't make a
noise cancelling handset for we have a Volume Control Box to reduce
the mic level if it's noisy (using a small screw driver to adjust a tiny pot).
That's not a terrible idea since if it's noisy it's likely that the user will be
speaking louder anyway. It simply plugs into the phone's handset jack and the
handset cord plugs into it. It only works on phones with electret transmitters
(either polarity), which is just about all of them these days.
Another option is to put in a
different model phone. Maybe an older phone that we do make a noise cancelling
Most of our customers who have gone
through this before know that if they sell a customer an amplified handset for a
noisy area, the customer will probably return it. They already know to do a
consultative sell when dealing with amplified handsets. If it's noisy they check
with us to see if a noise cancelling handset is available before quoting it.
If we don't have a noise cancelling
handset for the type of phones you normally sell, ask the manufacturer to call
us. We've worked with many manufacturers to create a noise cancelling handset
for their system.
Not having an amplified or noise
cancelling handset for the phones where it's needed has led to a lot of bad
blood when a new system is put in. Sometimes the salesman didn't ask about it.
Having to pull out a phone system and put the old one back makes for a very bad
day (lots of our customers call us in a panic).
Be sure your salesmen ask about
special stuff like amplified handsets when you're giving a quote on a new phone
system. Call us to get the pricing and availability on what you're selling so
you have your ducks in a row up-front, and don't have to panic later.
A lot of our customers get an
amplified and noise cancelling handset. The benefit of both
amplified and noise cancelling in a handset is that the user can raise the
receive volume using their fingertips. They don't have to go back to the phone
to adjust the volume. And on some phones when the handset is hung-up the volume
that had been raised using the buttons on the phone returns to normal. With the
amplifier in the handset, the volume level remains the same (set by the wheel)
because the user doesn't adjust the phone's volume control.
For a technical
explanation of how our noise cancelling transmitters work, click HERE.
If the user needs an amplified
handset because they can't hear well, we make them for most phones. We also make
an In-line Handset Amplifier that works with all phones with the dial in
the base, except RCA and GE phones. It's cheaper than an amplified handset, uses
the same circuit that's in our amplified handset, and works perfectly (unlike
other brands on the market).
If the user wears a hearing aid, it
would be a good idea for them to look at our
Hearing Aid Compatibility Tech
Bulletin. It explains what needs to be done to get the T-Coil in the
hearing aid to work with the handset on the phone.
When the T-Coil is activated on a
hearing aid the hearing aid's mic that's normally used to pickup sounds is
switched off, which reduces the annoying squeal. The hearing aid then uses a
coil of wire inside of it to receive the audio from the phone's handset by
induction. Just like the old suction cup telephone recording gizmos from years
Short Body RJ45 Patch Cords
We recently started making CAT5e
Patch Cords with a special Short Body 8 Pin Modular Plug:
Apparently it's needed on some phones
(like Shoretel wall phones) and equipment where the normal length 8 Pin Plug
interferes. This is the difference:
If you need a CAT5e Patch Cord of any
length with these strange plugs, give us a call. We have regular CAT5e and CAT6
Patch Cords, too. As well as jacks, faceplates, etc.