AT&T GL2113-21
AT&T GL2113-21 Cordless Home Phone User Manual
Model: GL2113-21 | Brand: AT&T
Introduction
The AT&T GL2113-21 DECT 6.0 2-Handset Expandable Cordless Phone offers advanced features for home communication. This system includes Bluetooth Connect to Cell technology, allowing you to manage cellular and landline calls from one device. It also features Smart Call Blocker to filter unwanted calls and a digital answering machine for message management. The design prioritizes ease of cleaning and hygiene.
What's in the Box
- Base unit
- 2 handsets
- Charger
- 2 AC adaptors
- 4 battery cells

Image: The AT&T GL2113-21 cordless phone system, showing the main base unit with one handset and a secondary charging cradle with another handset.
Setup
- Install Batteries: Open the battery compartment on each handset and insert the provided AAA batteries, ensuring correct polarity.
- Connect Base Unit: Plug the main base unit's AC adaptor into a power outlet and connect the telephone line cord to a wall jack (if using a landline).
- Charge Handsets: Place the handsets on their respective charging cradles. The "CHARGE" indicator on the handset should illuminate. Allow at least 16 hours for the initial charge.
- Register Additional Handsets: If you have additional handsets or a separate charging cradle, place the handset on the main base unit momentarily to register it with the system. Once registered, it can be moved to its own charging cradle.
Operating Instructions
Basic Call Functions
- Making a Call: Pick up a handset, press the PHONE button (green), and dial the number.
- Answering a Call: Press any key (Any Key Answer) or the PHONE button when the phone rings.
- Ending a Call: Press the OFF/CANCEL button (red) or place the handset back on the cradle.
- Redial: Press REDIAL/PAUSE to redial the last 10 numbers called.
- Mute: During a call, press MUTE/DELETE to mute your microphone. Press again to unmute.
- Volume Control: Use the VOLUME buttons on the handset to adjust call volume.
Full-Duplex Speakerphone
The built-in full-duplex speakerphones in the handset allow both parties to speak and be heard simultaneously, enhancing conversation flow.

Image: A woman using the phone's speakerphone function while engaged in another activity, demonstrating the hands-free capability.
Caller ID/Call Waiting
The phone supports Caller ID/call waiting with a capacity to store up to 50 name and number records. This feature requires subscription to Caller ID service from your telephone service provider.

Image: A close-up view of the phone's screen displaying caller ID information, highlighting the clear digital display.
Phonebook Contacts
Store up to 1,000 phonebook contacts. Contacts can be entered manually or downloaded from a cellular phone using the Bluetooth Connect to Cell feature.

Image: The phone's screen showing a list of phonebook contacts, illustrating the large storage capacity.
Backlit LCD & Lighted Keypad
The phone features a high-contrast white backlit LCD and a lighted keypad for improved visibility in various lighting conditions.

Image: A detailed view of the phone's backlit screen and illuminated keypad, emphasizing readability in low light.
ECO Mode
The phone incorporates power-conserving technology (ECO mode) to reduce power consumption when the phone is not in use, contributing to energy efficiency.

Image: The phone's screen with a highlighted ECO mode icon, indicating its power-saving feature.
Other Features
- Quiet mode
- Call screening
- Call intercept
- Remote access
- Message retrieval from handset
- Message time stamp
- Conference between an outside line and up to 4 cordless handsets
- Intercom between handsets
- Voicemail waiting indicator (Network dependent)
- Quick access key for voicemail box
- Trilingual prompts (English / Spanish / French)
Smart Call Blocker
The Smart Call Blocker feature automatically blocks robocalls from ringing through, even on the first attempt. You can also permanently blacklist any number with a single touch. The system supports up to 1,000 name and number entries for call blocking.

Image: The phone next to a graphic symbol of a blocked call, illustrating the Smart Call Blocker feature.
Bluetooth Connect to Cell
This technology allows you to make and receive calls from your cellular plan using the cordless home phone system. You can pair up to two cell phones and connect two cell phones, or one cell phone and one Bluetooth headset. This enables access to smartphone voice assistants like Siri or Google Now from the cordless handsets, even if your smartphone is in another room.

Image: The cordless phone wirelessly connected to two mobile phones, demonstrating the Bluetooth Connect to Cell functionality.
Digital Answering System
The system includes a digital answering machine with up to 22 minutes of recording capacity for incoming messages, outgoing announcements, and memos. A built-in voice guide assists with easy setup of the answering system.

Image: The phone's screen displaying a voice guide prompt for recording an announcement, indicating the digital answering system feature.
Maintenance
The seamless and smooth design of the handset and base facilitates easy cleaning and disinfection. Regularly wipe down the surfaces with a soft, damp cloth to prevent dirt and germ accumulation in crevices.

Image: A gloved hand cleaning the phone's base unit, highlighting its seamless design for easy maintenance.
Troubleshooting
If you experience issues with your AT&T GL2113-21 phone system, consider the following general troubleshooting steps:
- No Dial Tone/No Power: Ensure all power cords and telephone line cords are securely plugged into their respective outlets and jacks. Check if the AC adaptors are functioning correctly.
- Handset Not Charging: Verify that the handset is properly seated in its charging cradle. Clean the charging contacts on both the handset and the cradle with a dry cloth.
- Poor Call Quality/Static: Move the handset closer to the base unit. Ensure the base unit is not placed near other electronic devices that may cause interference (e.g., microwaves, Wi-Fi routers).
- Bluetooth Connection Issues: Ensure your cellular phone's Bluetooth is enabled and discoverable. Try unpairing and re-pairing the devices.
- Answering System Not Recording: Check the recording capacity. Ensure the answering system is turned on.
For more detailed troubleshooting or persistent issues, refer to the comprehensive user manual provided with your product or contact AT&T customer support.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 5.9 x 3.5 x 7.07 inches |
| Item Weight | 1.39 pounds |
| Model Number | GL2113-21 |
| Batteries | 4 AAA batteries required (included) |
| Manufacturer | VTech |
| Brand | AT&T |
| Color | Black |
| Telephone Type | Cordless |
| Material | Plastic |
| Power Source | Corded Electric |
| Dialer Type | Single Keypad |
| Answering System Type | Digital |
| Compatible Devices | Cell phones with Bluetooth |
| Date First Available | February 8, 2023 |
Warranty and Support
For information regarding product warranty, technical support, or service, please refer to the warranty card included with your purchase or visit the official AT&T support website. You may also contact AT&T customer service directly for assistance.
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