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How to Change Your Phone Number on a DSC Alarm System

This article is a collaborative effort, crafted and edited by a team of dedicated professionals.

Contributors: Muhammad Baballe Ahmad, Mehmet Cavas, Sudhir Chitnis, and Zhen-ya Liu.

✓ Verified & Tested Information

This guide will show you how to change your phone number on a DSC Alarm system . You’ll need to know your current phone number and the new phone number you want to use.


Changing your phone number on a DSC alarm system can be a complicated process, but it is important to update your contact information in the event of an emergency. Keeping your contact information up to date helps ensure that your alarm system is able to provide you with the highest level of security. This guide will explain the steps for changing your phone number on a DSC alarm system.

What is a DSC Alarm System

A DSC Alarm System is a home security system that consists of a keypad, control panel, motion detectors, door and window contacts, and other components. It provides protection against intruders by sending an alert to the homeowner when an alarm is triggered. Additionally, most systems are also able to be set up with central monitoring where notifications will be sent to local police or fire departments in the event of an emergency.

The DSC Alarm System operates on a proprietary hardware platform that utilizes advanced technology for superior device compatibility. It also features built-in features such as false alarm immunity and 2-way voice for communication in urgent situations. With its combination of reliable hardware and advanced features, the DSC Alarm system is considered one of the premiere home security solutions on the market today.

Preparing to Change Your Phone Number

Changing your phone number on your DSC Alarm System is a simple process that can be done with a few simple steps. Before you get started, it is important to gather all the tools and information you need. You should have access to the user manual of your alarm system and the phone number you are planning to use. Additionally, you should have a spare phone that you can use in case of any problems. With the necessary items in hand, you can begin the process of changing your phone number.

Disarm the alarm system

Before you can change your phone number on your DSC alarm system, you will need to make sure that the system is disarmed. To do this, enter your four-digit code into the keypad of the alarm control panel. Once you have entered the correct code, the system will be disarmed and you can move on to changing your phone number.

If it has been more than two minutes since you entered your code, then the system may have reverted itself to armed mode due to a timeout feature. If this is the case, simply press * followed by 1 and it should disarm again. Make sure to enter your code within two minutes or it will lock up again.

Have your new phone number ready

Prior to changing your phone number, it is essential that you have access to your new phone number. Once you update your phone number in the DSC alarm system, any further changes will require the new number in order to gain authorization. In addition, having a new phone number ready also allows for a smoother transition between numbers should any issues arise during the change process.

It is important that you take the time to accurately record your new phone number before initiating the change. Additionally, double check that you have entered this information correctly as mistakes can lead to unexpected problems down the road. Once you are certain your records are correct and complete, you are now ready to make your official change.

Changing the Phone Number

Changing the phone number on your Digital Security Controls (DSC) alarm system is an easy process that can be done by following a few simple steps. This article will provide you with detailed instructions on how to change your phone number on the system, so you can stay connected when an alarm is triggered. Knowing these steps will assure that your security system is properly linked to your phone and that you won’t miss any notifications.

Access the programming menu

To change the telephone number on your DSC alarm system, you first need to access the programming menu. This can be done with a combination of buttons on the primary keypad, depending on which model you have. For example, if you have a DSC Power832 security system, press [*] [2], enter your installer code and then press [*] [5]. You may also be able to access the menu by pressing and holding certain buttons or by removing and replacing the main backup battery. Check your user guide for more specific instructions. Once you have accessed the programming menu, you will be ready to start changing the settings of your alarm system.

Enter the new phone number

To set up a new phone number for your DSC alarm system, the first step is to enter the new phone number into the panel. To do this, enter programming mode by entering your master code (if you don’t already have a master code assigned, you can create a default one when you install the system).

From programming mode, go to option 5 and select “Edit Telephone Numbers”. You will see a list of numbers with their corresponding labels (i.e. “Cellphone” or “Spouse’s Phone”). Find the one labeled “Home Phone” and delete it by pressing “Clear/Delete. Next, press the + key to add the new phone number and confirm it by pressing #. Finally, press * to save your changes and exit programming mode. You will be able to see the updated list of phone numbers in programming mode or on your keypad display (if programmed). Now that you have entered your new phone number into your DSC alarm system, you’re ready to configure its notification settings!

Testing the New Number

After changing your phone number on your DSC Alarm System, it is important to test the new number to make sure that it is working properly. Testing your DSC Alarm System with the new phone number will help ensure that you are receiving the proper notifications and that your system is able to connect to the correct phone. In this section, we will discuss the steps you need to take to test the new phone number.

Activate the alarm system

Once you’ve Disarm the alarm system, you will want to enter your new phone number. It’s important to follow the directions on the keypad carefully and to listen for any feedback. You will want to activate your alarm system once the new number is entered correctly ensuring that it is now connected with the new number correctly.

When activating your alarm system, first enter your PIN followed by a star key (#). Then power up the control panel by pressing two * keys simultaneously on any of its keys. A confirmation prompt should indicate that the number has been accepted and programmed into the control panel. Ensure that all necessary components such as keypads, motion sensors and sirens have been properly activated for full protection of your residence or business.

Test the new phone number

After changing the phone number in your DSC alarm system, it is important to test that the system is still functioning properly. Ensure that it can correctly receive notifications for alarms, troubles and other functions. You can do this by performing a 2112 test.

To do a 2112 test, press the * button on your keypad then enter 2112 using your new phone number per the instructions below:
-If your new number begins with 0 or 1, prefix those numbers with a 9 after entering *2112
-For all other numbers, just enter them directly after *2112
-Press the # button after you’ve entered the number
-Listen for a tone signaling that the system has recognized your new number

Check all components of the system to ensure they are working properly. If you see any problems or need help setting up any features of your DSC alarm system, contact support personnel for further guidance.


Troubleshooting is an important part of changing your phone number on a DSC alarm system. If you are having trouble setting up or changing the number, you will need to make sure that you are following the correct steps. This article will explain how to troubleshoot a DSC Alarm System and make sure that your number change is successful.

Check the phone line connection

Before troubleshooting a DSC alarm system for phone number change issues, it is important to check all your cables and connections thoroughly. Make sure the phone line input on the DSC alarm control panel is properly connected to a functioning telephone line. Inspect both ends of each cable, and verify that the phone jack is securely connected to the alarm panel. Additionally, ensure that all connectors are tight and secure. If any part of your phone line connection appears damaged or loose, contact an experienced technician in order to avoid any damage or further disruption.

Check the phone number is correct

To ensure that your DSC alarm system is calling the correct phone number for an emergency, it’s important to check all the information is correct. You can do this by entering your master code followed by the “#” key followed by 1-9-# on the keypad then pressing “off”. This will bring up your phone numbers, which you can check and amend as necessary.

To change the Primary number, follow these steps:
Press “OFF” twice
Enter your 4-digit Master Code and press “#”
Enter 1-9-#
This will bring up the System Phone Numbers Menu.
Press 1 to select Edit Phone Number (add or change).
Enter a new 10 digit telephone number.
Press “OFF” twice again to exit.

How to Change Your Phone Number on a DSC Alarm SystemCheckout this video:

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