
Do you have a question about the AT&T CRL81212 and is the answer not in the manual?
Details model number, type, serial number, and purchase information for the AT&T phone.
Information on hearing aid compatibility and ENERGY STAR certification for the product.
Lists all components included in the AT&T telephone package.
Explains the function of each button on the AT&T cordless handset.
Guide to navigating the AT&T handset's main menu system.
Details the meaning of the IN USE and HANDSET LOCATOR indicators on the base.
Recommendations for placing the telephone base for best performance and range.
Requirement for a DSL filter when using DSL internet service.
Step-by-step instructions for installing the telephone base and connecting cords.
Instructions for connecting the handset charger and power adapter.
Explanation of battery status indicators shown on the handset screen.
Procedure for installing the rechargeable battery into the cordless handset.
Details on charging the handset and the CHARGE light indicator.
Information on setting date and time after power loss or registration.
Step-by-step guide for mounting the telephone base on a wall.
Instructions on how to remove the telephone base from a wall mount.
General instructions on how to navigate and use the handset settings menu.
Guide to setting the ringer volume from 1 to 6 or turning it off.
How to select one of the 10 available ringer tones for the handset.
Step-by-step process for manually setting the date and time on the handset.
How to select English, French, or Spanish for the handset display.
Setting up speed dial access for your voicemail number.
Explanation of the visual indicator for new voicemail messages.
Procedure to manually turn off the new voicemail indicator.
How to assign a unique name to each system handset.
Adjusting or turning off the audible beep for key presses.
Enabling or disabling automatic date and time setting using Caller ID.
Entering the local area code for simplified dialing from Caller ID.
Changing the dial mode between Touch-tone and Pulse.
Displays the official AT&T website address for the product.
How to silence all sounds for a set period (1-12 hours).
Procedures for initiating, receiving, and terminating phone calls.
How to temporarily silence an incoming call's ringer.
Instructions for using the handsfree speakerphone function.
How to redial the last 10 dialed numbers.
How to use the equalizer to improve audio clarity.
Adjusting the listening volume level during a call.
How to manage incoming calls when already on a call.
Temporarily disabling the microphone during a call.
Accessing directory or call log numbers during an active call.
Using Audio Assist to make voices louder and clearer.
Switching to tone dialing for accessing services like phone banking.
Transferring an outside call to another handset without prior notification.
Using the handset locator feature to find misplaced handsets.
How to join a call that is already in progress on another handset.
Steps to start an intercom call between handsets.
How to answer an incoming intercom call on another handset.
How to transfer or share an outside call using the intercom feature.
Information on how the phone directory is shared across all handsets.
Details on the maximum number of entries the directory can store.
Step-by-step guide for adding new contacts to the phone directory.
Chart showing characters associated with each dialing key for text input.
How to save a pre-dialed phone number into the directory.
How to browse through existing entries in the phone directory.
Methods for finding directory contacts by searching for names.
How to dial a number directly from a displayed directory entry.
Procedure for removing contacts from the phone directory.
How to modify existing contact numbers and names in the directory.
Instructions for assigning phone numbers to speed dial locations.
How to change or update existing speed dial assignments.
Procedure for clearing speed dial numbers.
How to initiate calls using the speed dial feature.
Using speed dial key 1 to access voicemail.
Explanation of how Caller ID works with call waiting service.
How the phone stores and displays incoming call information.
How the handset indicates new or missed calls.
How caller ID names match directory entries based on phone number.
How to view and interact with the caller ID history log.
Changing the number format for dialing from the caller ID log.
How to make a call directly from an entry in the caller ID log.
Procedure to clear all entries from the caller ID log.
How to save incoming call details from the log to the directory.
Explanations for why caller ID information may not display.
Step-by-step guide for pairing a new cordless handset with the base.
Instructions on how to remove all registered handsets from the base.
Meanings of various icons displayed on the handset screen.
Descriptions of different audible alerts and tones for the handset.
Explanation of the IN USE light status on the telephone base.
Meaning of the CHARGE light on the handset when charging.
Explanation of frequently displayed messages on the handset screen.
Further messages that may appear on the handset display.
Steps to resolve issues where the phone is completely unresponsive.
Solutions for when the phone does not produce a dial tone.
Steps to resolve problems preventing outgoing calls.
Addressing general issues with cordless handset performance.
Resolving issues with noise, static, or weak signals.
Tips to improve sound quality when using the speakerphone.
Steps to resolve issues where other calls are heard during a conversation.
Solutions for when the handset does not ring for incoming calls.
Resolving issues where calls cut in and out during use.
Steps to take if the battery charge light does not turn on.
Diagnosing and resolving problems with the Caller ID feature.
Resolving Caller ID issues when making or receiving calls.
Understanding and addressing new voicemail notifications.
How to change the LCD language back to English if set incorrectly.
Steps to take if you cannot retrieve voicemail messages.
Resolving issues with nontraditional phone services using a computer.
A common method to fix electronic equipment not responding normally.
Tips for handling and caring for your AT&T cordless telephone.
Precautions to avoid damage from water or moisture.
Safety measures to take during electrical storms.
Guidelines for safely cleaning the telephone's casing.
Alerts and basic safety precautions for operating the telephone.
Important warnings related to using the telephone, including gas leaks.
Safety instructions concerning water exposure and cleaning agents.
Guidance on seeking help for product issues and warranty claims.
Safety precautions for handling and replacing batteries.
Information on cordless phone privacy limitations and electrical safety.
Tips to reduce or prevent interference with TVs and VCRs.
Guidelines for handling, disposing of, and recycling rechargeable batteries.
Precautions for users with implanted cardiac pacemakers.
Compliance information regarding FCC Part 68 and ACTA.
Measures to correct and prevent harmful radio frequency interference.
Details on what the limited warranty covers for the AT&T product.
Steps to follow to get warranty service for the product.
Information on what is not covered by the limited warranty.
How to initiate a warranty claim and what information is needed.
List of items and information needed when returning the product for warranty.
Technical data including RF band, operating temperature, and voltages.
Details on talk time, standby time, and power adapter specifications.
Explanation of the DECT 6.0 technology for enhanced range and clarity.
Information on the factors affecting the telephone's operating range.
Details on how HD audio improves sound quality for calls.