DKT2304-CT Cordless Digital Telephone

Toshiba’s reliable 2304-CT telephone was first released in 2003, manufacturing ceased in November 2012 and manufacturer support ended November 2019.

The DKT2304-CT cordless digital telephone is compatible with all Strata CTX/CIX and Strata DK telephone systems (except Strata DK24/56/96, Release 3). All it requires for connection is a digital station port.

The DKT2304-CT uses 900 MHz Digital Narrow Band technology. The 2304-CT base station has a typical range of up to 300-400 feet, 0.7 miles if unobstructed. While the DKT2304 provides a little less range than the DKT2204, the 2304 has 30 available channels while the 2204 has only 10 channels.

Features for the benefit of enhanced productivity:

  • Single button access to: Message, Menu/Mute, Speaker, Redial, Conference/Transfer, Talk, and Hold
  • High quality ultra-secure speech with 32kbps Adaptive Differential Pulse Code Modulation (ADPCM) voice code combination
  • Maximum Security Digital Narrow Band includes 30 phone channels and is almost impossible to scan
  • Ringer and handset volume control (or vibrate)
  • 4 programmable function buttons
  • 2-line with 32-character wrapping LCD display, with 4 icons Talk, Ringer Off, Low (Battery) and Message Waiting
  • Use as a stand-alone extension or as a shared extension with a digital desk phone
  • 7 hours of talk time and 5 days of standby time
  • 3 Ring Tones available
  • Headset jack (2.5 mm)

Toshiba DKT2304-CT Compatible Phone Systems:

Toshiba Strata DK   |   Toshiba Strata CIX   |   Toshiba Strata CTX


The DKT2304-CT cordless handset has 30 operating channels available.  A common misconception is that this limits a customer to 30 handsets.  This is not the case.  Each handset can operate on any of the 30 channels because each one selects an available channel within its range.  In the given range, 30 simultaneous calls can be made.  Another factor is the distribution of the telephones in a facility.  If your handsets are disbursed throughout a facility, there should not be contention for all channels.  If there are more than 30 in one area and 30 users are using their handsets, the 31st user If would not be able to get dial tone. 


Fixed Feature Buttons

Disconnects calls.
Selects ringer tone and volume in standby mode and speaker volume in talk mode.
Press to set up conference and transfer calls.
Press to Hold internal or outside calls. Press Hold or Talk to resume the call.
Selects channel while in talk mode and locks the handset while in standby mode. Press this button if you encounter interference while using your telephone. You can manually change the telephone’s channel for clear operation.
Press to retrieve voice messages.
To dial the last number called, press Talk, then Redial. The last number called is redialed.Note: If you are using the strata CTX system, the Redial button works only with the last dialed number that was answered. If you dial a number and receive no answer, the Redial button will not use that number as the last one dialed.


Toggles the handset ringer tone On and Off.
Flexible buttons that initiate and disconnect calls. These buttons can be programmed as Extensions or outside Line buttons or Feature buttons by your telephone system administrator.

Feature Access Codes

Account Code Cnf/Trn + #46 + Account code digits
Attendant Console 0
Automatic Busy Redial On #441
Automatic Busy Redial Off #442


Call Forward Codes

All Calls to an ext. Press ext. button + #6011 (tone) + dial the destination extension number (tone)
All Calls to Outside Number Press ext. button + #6011 (tone) + outside line access code + dest. Telephone no. + # (tone)
Busy to an ext. Press ext. button + #6021 (tone) + dial the dest. Ext. no. (tone)
Busy to Outside Number Press ext. button + #6021 (tone) + outside line access code + dest. Telephone no. + # (tone)


DKT2304-CT Troubleshooting Suggestions


DKT2304-CT Specifications

DKT2304-CT Button Diagram

Need DKT2304-CT support?

Toshiba DKT2304-CT Phone Support

Whether you’re a telecom administrator, an IT professional, a business owner, an employee, or a telecom vendor who needs Toshiba technical support for your Toshiba DKT2304-CT,  you have landed in the right spot. Help is just a few clicks away. Our professional and certified Toshiba technicians are on-call to assist you and remotely program your Toshiba DKT2304-CT phones.

Comprehensive Support for DKT2304-CT Phones

Our Toshiba support coverage includes down systems, programming changes, password resets, adding functionality to your system, and phone troubleshooting issues for your Toshiba DKT2304-CT. We have the knowledge and the technicians to take care of your request. We currently provide technical support, Monday through Friday, 7 am to 4 pm Pacific time. After hours emergency support is offered on an as-available basis for Toshiba DKT2304-CT phones.


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