Telephone Hold Button


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Although a hold feature is standard on most new phones, a lot of us still use the origional bell phones. Those of us that require a hold feature will find this circuit very useful. It is easy to build, and is compact enough to be installed inside the phone with no real problem. It is also powered by the phone line itself, eliminating the need for batteries.

Schematic

This is the schematic of the Phone Hold Button

Parts

Part
Total Qty.
Description
Substitutions
R111.5K 1/4 W Resistor
R211K 1/4W Resistor
D111N4002 Silicon Diode1N4003, 1N4004, 1N4005, 1N4006, 1N4007
SCR11C106Y SCR
LED11Red LEDGreen LED, Yellow LED
S11Normally Open Push-Button Switch
MISC1Wire, Board, Case (If Used)

Notes

  1. To place a call on hold, simply hold down the button while hanging up the phone. To take a call off hold, just pick up the phone, or any extension.
  2. Even though this is a simple circuit, you may have to check with your phone company before use.

Related Circuits

Ringing Phone Light Flasher, Phone Busy Indicator, FM Telephone Bug, Cut Phone Line Detector, Simple Phone Tap, Telephone Hold Button, Telephone Recorder, Remote Telephone Ringer

Comments

Add A Comment

Sam
Telephone Hold Button
Monday, March 12, 2012 6:33:39 PM
Does the button need to be held down for the call to remain on hold or just while the phone is being hung up?
Marc
Telephone Hold Button
Saturday, March 03, 2012 8:00:47 PM
Hi! I have C106B, it doesnt work... i dont know if C106Y does make a difference? can someone help me? thank you! marC:)
FranciscoL
Telephone Hold Button
Wednesday, July 30, 2008 5:27:12 PM
Wonder if music-on-hold circuit is available...
siddharth k
best work
Saturday, March 08, 2008 11:15:02 AM
i was looking for somethig like this ...got it .working well for my telephone...
anonymous
Telephone Hold Button
Thursday, October 18, 2007 5:10:34 AM
(In reply to GRREG): This circuit simply maintains the line's 'busy' state so that the caller is not disconnected. It does not actually provide any means for transmitting audio signals along the line. The circuit itself can be quite useful, although I personally prefer a PBX system with which I may taunt telemarketers with looping menus >:)
anonymous
Telephone Hold Button
Thursday, August 02, 2007 2:36:30 PM
This would seem to also work as a "Off Hook" or "Do Not Disturb" device. Just press the button to make your phone "off hook" without hearing a dial tone and alert tone. Just pick up a phone to reset it.
GRREG GRIFFITH
Telephone Hold Button
Friday, April 20, 2007 9:29:15 PM
IS THERE A WAY TO USE A WIRELESS PHONE BUTTON ARRAY TO PUT CALLERS ON HOLD WITH MUSIC AND LASTLY I WANT TO MAKE ONE MUSIC ON HOLD CIRCUIT FOR SEVERAL PHONES IN DIFFERENT LOCATION IN MY HOME
pat
Telephone Hold Button
Tuesday, March 13, 2007 5:20:00 PM
I'm going to make a hold button that when pressed plays the boring hold music of my choice from a tape recorder (I will have to rewind the tape each time I put someone on hold though)
vijaykumarv
good
Friday, March 02, 2007 2:52:37 AM
good
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