1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Coby CT-P730 Speakerphone. The CT-P730 is a versatile telephone designed for ease of use, featuring a two-way speakerphone and a 13-number speed dial memory. Please read this manual thoroughly to ensure proper use and to maximize the functionality of your device.

Figure 1: Coby CT-P730 Speakerphone. This image displays the white telephone unit, including the handset, coiled cord, numeric keypad, speaker grille, and various function buttons such as HOLD, SPEAKERPHONE, REDIAL, and speed dial keys.
2. Product Features
- Two-way speakerphone with adjustable volume control.
- 13-number speed dial memory: 3 one-touch emergency dials (M1, M2, M3) and 10 regular speed dials.
- Last number redial function.
- Flash button for call waiting or transferring calls.
- Hold button with LED indicator.
- Receiver volume control.
- Ringer on/off switch.
- Electronic bell ringer.
- Hearing aid compatible.
- Fully modular two-piece design.
3. Package Contents
Verify that your package contains the following items:
- Coby CT-P730 Telephone Unit (Base and Handset)
- Telephone Line Cord
4. Setup
- Connect the Handset: Plug one end of the coiled handset cord into the handset and the other end into the jack on the left side of the telephone base.
- Connect to Telephone Line: Plug one end of the telephone line cord into the jack labeled "LINE" on the back of the telephone base. Plug the other end into a standard telephone wall jack.
- Power: This telephone operates without external power. It draws power directly from the telephone line.
- Ringer Setting: Locate the Ringer ON/OFF switch, usually on the side or back of the unit. Set it to "ON" for the phone to ring.
5. Operating Instructions
5.1 Making a Call
- Lift the handset or press the SPEAKERPHONE button.
- Listen for a dial tone.
- Dial the desired telephone number using the numeric keypad.
- To end the call, replace the handset or press the SPEAKERPHONE button again.
5.2 Receiving a Call
When the phone rings, lift the handset or press the SPEAKERPHONE button to answer.
5.3 Speakerphone Function
- To activate the speakerphone during a call, press the SPEAKERPHONE button. You can then place the handset back on the cradle.
- To switch back to the handset, simply lift the handset.
- To adjust speakerphone volume, use the volume control buttons (if present, or a slider on the side).
5.4 Speed Dialing (M1, M2, M3, and 0-9)
Programming Speed Dial Numbers:
- Lift the handset or press SPEAKERPHONE.
- Press the STORE button.
- Dial the telephone number you wish to store (up to 16 digits).
- Press the STORE button again.
- Press the desired memory location button (M1, M2, M3 for one-touch, or a numeric key 0-9 for regular speed dial).
- Replace the handset or press SPEAKERPHONE to exit programming mode.
Using Speed Dial Numbers:
- Lift the handset or press SPEAKERPHONE.
- For one-touch speed dial, press the desired memory button (M1, M2, or M3). The number will dial automatically.
- For regular speed dial, press the AUTO button, then press the desired numeric key (0-9). The number will dial automatically.
5.5 Last Number Redial
To redial the last number called:
- Lift the handset or press SPEAKERPHONE.
- Press the REDIAL button. The last dialed number will be automatically redialed.
5.6 Hold Function
To place a call on hold:
- During an active call, press the HOLD button. The LED indicator next to the HOLD button will illuminate.
- To resume the call, press the HOLD button again or lift the handset.
5.7 Flash Button
The FLASH button is used to access network services such as call waiting or call transfer, depending on your telephone service provider. Press FLASH briefly during a call to activate these services.
5.8 Volume Control
- Receiver Volume: Adjust the volume of the handset receiver using the slider or button located on the side of the handset or base unit.
- Speakerphone Volume: Adjust the speakerphone volume using the dedicated volume control (if available) or by pressing the volume buttons during a speakerphone call.
5.9 Ringer On/Off Switch
To silence the telephone ringer, locate the Ringer ON/OFF switch (typically on the side or back of the unit) and slide it to the "OFF" position. Slide it to "ON" to enable the ringer.
6. Maintenance
- Cleaning: Wipe the telephone with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Avoid Liquids: Keep the telephone away from water and other liquids.
- Placement: Place the telephone on a stable surface, away from direct sunlight, heat sources, and excessive dust.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No dial tone. | Telephone line cord is disconnected or faulty. | Ensure the telephone line cord is securely plugged into both the phone and the wall jack. Test with another phone if possible. |
| Phone does not ring. | Ringer switch is set to OFF. | Locate the Ringer ON/OFF switch and set it to "ON". |
| Cannot hear caller or caller cannot hear me. | Volume is too low or microphone is obstructed. | Adjust receiver or speakerphone volume. Ensure nothing is blocking the microphone on the base unit. |
| Speed dial not working. | Number not programmed correctly or not stored. | Re-program the speed dial number following the instructions in Section 5.4. |
8. Specifications
| Model Number | CT-P730 |
| Brand | Coby |
| Color | White |
| Product Dimensions (L x W x H) | 7 x 9 x 3 inches |
| Item Weight | 1.75 pounds |
| Conference Call Capability | 2-way (Speakerphone) |
| ASIN | B0002QKJDK |
| UPC | 716829507384 |
9. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Coby website.
Manufacturer: Coby





