On Off Switch for RJ11 Line Cord Cable New *An on/off switch with phone cords coming out of each side *An adapter to add it to your existing phone cord Just connect it to your phone cord, then flip the switch to turn your phone on or off during naps, meals, etc. Works with landline and cordless phones. Works with faxes and all-in-ones. PLEASE NOTE: If you have two phone numbers, this switch will only disconnect your main number. Your second number will remain connected. (If you need to disconnect two phone numbers--which ring on the same phone--you can click here to view that version of the switch.) Shipping is free. Thanks for looking!