Does it work on rotary phones?

YES! However, you can use a regular touch tone phone just for the setup - then you can switch to your rotary phone! Some rotary phones will connect dialing 12 for # and 11 for * but the easiest is to just use a touch tone phone for setup. Once the cell2jack is connected to your cellphone you can connect ANY landline phone to it and it will work!

Seller mentioned it requires mobile plan on the cellphone to use cell2jack? is it voip under the covers?

It uses your mobile phone plan and number its just simply allows you to use a normal Landline style phone instead of holding your smart phone

Will it work with a cordless handset system that has multiple phones? such as the at&t el52313.

I can't answer this for you; but, I am finding that I can't get it to work with more than one (formerly landline) phone (phones are of various types, portable in its own seat, wall type, desktop, etc.) I have a set of landline phones, both the same brand and type, both portable, and I can get one to work with the cell2jack unit, the other - nothing.

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CELL2JACK - Cellphone to Home Phone Adapter, Make and Receive Cell Phone Call on Your landline Phone Free - Cell Phone to Landline Dock - Cell to Landline Converter

Product ID: 207099879

Details

Color
white
Compatible Devices
Support all No
Connector Type
USB 2.0
Item dimensions L x W x H
9 x 6 x 0.5
Specific Uses For Product
Home

📞Universal landline compatibility

📶Boosts signal anywhere

🔋5V charging port

S$73

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📞 Stay connected, stay smart—your landline just got a 21st-century upgrade!

COST SAVVY CONNECTIVITY - Skip extra landline fees—use your existing mobile plan for calls on your home phone.
SIGNAL STRENGTH MASTERY - Place your phone where reception is strongest and talk clearly from any room.
SMART HOME COMMAND CENTER - Control lights, fans, and more via Siri or Google Assistant through your landline.
RADIATION REDUCING COMMUNICATION - Minimize cellphone radiation exposure by using your landline for mobile calls.
SEAMLESS CELL TO LANDLINE INTEGRATION - Turn any home phone into a smart mobile extension—no new device needed.

CELL2JACK is a patented Bluetooth adapter that transforms any analog home phone into a mobile call hub, supporting all phone types including rotary and senior-friendly models. It enhances call clarity by allowing your cellphone to be placed where signal is strongest, reduces radiation exposure, integrates with Siri and Google Assistant for smart home control, and eliminates the need for additional landline service fees. Setup is simple, with a 5V charging port to keep your phone powered.

Specifications

ASIN	B089984QRT
Best Sellers Rank	#1,589 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #53 in Cell Phone Grips
Brand	CELL2JACK
Built-In Media	Cell2Jack + USB cable
Color	white
Compatible Devices	Support all iPhone and Andriod. No Flip phone or fax support
Connector Type	USB 2.0
Customer Reviews	4.2 4.2 out of 5 stars (3,696)
Global Trade Identification Number	00869067000404
Input Voltage	5 volts
Item Dimensions	9 x 6 x 0.5 inches
Item Weight	1 ounces
Manufacturer	cell2jack
Mfr Part Number	cell2jack_v5
Model Number	Cell2jack_v4
Number of Items	1
Number of Ports	1
Package Quantity	1
Power Plug Type	No Plug
Specific Uses For Product	Home
Unit Count	1 Count
Warranty Description	One year warranty

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