Call Customer Service 1-8O5-465-751O To Fix Issue Storing memory numbers

You can get the manual here. Here's what it says about storing numbers:

Storing a Phone Number in the One-Touch Memory Locations

1. Lift the handset.
2. Press the PROG button.
3. Dial the telephone number you want to store (up to 16 digits).
4. Press the one-touch button (M1, M2, M3) where you want to store the number.
5. Hang up the handset.

Storing a Phone Number in the Two-Touch Memory Location

1. Lift the handset
2. Press the PROG button.
3. Dial the telephone number you want to store (up to 16 digits).
4. Press the MEM button.
5. Press the dial button (0 to 9) where you want to store the telephone number.
6. Hang up the handset.

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Before you store a telephone number in memory, make sure the dialing mode is
correctly set for the type of service you have. The default dialing mode is tone
(touch-tone), so if you have pulse (rotary) service, you must first change the dialing
mode. See “To Set the Dial Mode.” The following buttons can be stored into any
memory location: 0-9.
STORING FREQUENTLY CALLED NUMBERS
1. Pick up the handset.
2.Press the store button.
3. Push the desired memory location button.
4. Press the store button.
5.Use the handset number keys to enter the telephone number (up to 16-digits)
and press the store button.
6.Hang up the handset.
NOTE: If you make a mistake, use the delete button to delete wrong digits.
CHANGING A STORED NUMBER
Repeat the storage sequence above. The new number replaces the old number at
the memory location.
ERASING A STORED NUMBER
1. Pick up the handset.
2.Press the store button.
3.Press the memory location (0-9) to be erased.
4.Press delete for three seconds until the number in the display is erased.
5.Hang up the handset.
DIALING FREQUENTLY CALLED NUMBERS
1. Pick up the handset and press the mem button.
2. Press 0-9 for the memory location. The number dials automatically.
OR
1. Pick up the handset and press the dial button.
2. Press the review button for the desired memory location.
3. Press the dial button to dial the number.
OR
1. Press dial button while the handset is still in the cradle.
2. Press the review button for the desired memory location, lift the handset and the
number dials automatically.

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MEMORY
Each memory button is capable of storing phone numbers up to 16 digits. Memory
locations 0-9 require you to press the mem button for access.
STORING A NUMBER IN MEMORY
1. Pick up the handset, and press the store button.
2. Dial the number to be stored (up to 16 digits).
3. Press store again.
4. Press a memory location button 0-9, and hang up the handset.

INSERTING A PAUSE IN THE DIALING SEQUENCE
Use the redial button to add pauses to a dialing sequence, for example after you dial
9 for an outside line. A pause is approximately 4 seconds long.

CHANGING A STORED NUMBER
To change a stored number, you just replace it with a different number using the
procedure for storing a number.

DIALING A STORED NUMBER
1. Pick up the handset, and wait for a dial tone.
2. For numbers stored in memory locations 0-9, press the mem button, and then
number of the location in which the desired number is stored

My Mom had this same problem.   I found these instructions on Uniden's website (uniden.com) under the "Owner Manuel" section.


Here you go - good luck!








Using the Speed Dial Memory 
Storing Numbers in Speed Dial Memory 
Your cordless phone can store up to ten numbers (up to 20 digits each) in the speed dial 
memory. To store number in memory: 
1) When the phone is in standby, press [memory]. The talk/batt low LED flashes. 
2) Use the keypad to enter the phone number. 
 (To enter a 2-second pause between numbers, press [redial/ 
pause]. Each pause counts as a digit. ) 
3) Press [memory] again. 
4) Select the speed dial location where you would like to store the 
number ( [0] to [9] ). You will hear a confirmation tone indicating 
that the number has been stored. 
NOTE: 
• Storing a number to a speed dial location will 
overwrite the any previously stored number without 
warning. 
• When storing numbers into memory and the handset is idle (i.e., no key is 
pressed) for more than 0 seconds, it will beep rapidly, and then the phone 
will return to standby. 
Dialing a Stored Number 
1) When the phone is in standby, press [talk], and listen for a dial tone. 
2) Press [memory] and enter the speed dial entry ([0] – [9]) that has the stored number 
you want to dial. (If you enter a digit that does not contain a stored number, the 
handset will beep rapidly, and the phone will not dial.) 
Chain Dialing 
The speed dial memory is not limited to phone numbers. You can store any number (up 
to 20 digits) that you need to enter once your call connects. This is referred to as Chain 
Dialing. An example is a frequently refilled prescription number. Store your pharmacy 
phone number in one speed dial and your most frequently refilled prescription number 
as another speed dial. To use, once you ring your pharmacy's automated prescription 
line, simply press [memory] and the speed dial number where you stored your account 
number. 
Erasing a Stored Number from Memory 
1) With the phone in standby, press [memory] twice. 
2) Press the number of the speed dial entry. A tone indicates that the stored number is 
erased from memory. 

Hello,
Here are the commands to run the phones memory dial (speed-dial).  I have included the instructions for deleting and changing numbers as well.  It is listed below.  I hope this helps you out.
Ken

MEMORY DIAL INSTRUCTIONS Store up to ten 20-digit numbers in memory for quick dialing. Storing a Number in Memory 1. Make sure the phone is OFF (not in TALK mode). 2. Press the MEMORY button. 3. Press a number (0-9) to store the dialed number in that memory location. 4. Press the MEMORY button again. 5. Use the handset number keypad to enter the telephone number (up to 20 digits, including pauses) and press the MEMORY button again to save the number. The unit beeps to confirm. 6. To enter another number in a different memory location, return to step 1 and repeat the process.
Storing a Redial Number 1. Repeat steps 1 through 4 in Storing a Number in Memory. 2. Press the REDIAL button. 3. Press the MEMORY button to store the number. You will hear a confirmation tone.
Changing a Stored Number 1. Repeat steps 1 through 6 in Storing a Number in Memory. 2. Press the MEMORY button to store the number. You will hear a confirmation tone. The old number will be overwritten with the new number.
Dialing a Stored Number 1. Make sure the phone is ON by pressing the TALK button. 2. Press the MEMORY button. 3. Press the number (0-9) for the desired memory location. The number dials automatically. Inserting a Pause in the Dialing Sequence Press the PAUSE# button once to insert a delay in the dialing sequence of a stored telephone number. A pause is needed to wait for a dial tone (for example after you dial 9 for an outside line, or to wait for a computer access tone). Each pause counts as 1 digit in the dialing sequence. If you need a longer pause, press the PAUSE# button twice.
Deleting Stored Numbers 1. Press the MEMORY button. 2. Press the desired memory location (0-9). 3. Press the MEMORY button twice to delete the entry. 4. You will hear a confirmation tone.

feature redial dial 00-19 for the memory location than dial a 1 than dial 9 and the full phone number than press feature to save it. If you have softkeys at the top of the phone(display) hit sta or sys to see the number you stored than pickup the receiver or hit speaker to dial the number.

Using the Speed Dial Memory
Storing Numbers in Speed Dial Memory
Your cordless phone can store up to ten numbers in the speed dial memory.
1) When the phone is in standby mode, press the memory key. The talk/batt low LED flashes.
2) Use the keypad to enter the phone number; each number can be up to 20 digits.
7
3) If you need the phone to pause during the dialing sequence, press
the redial/p key to insert a two-second delay between the
numbers. You can enter multiple pauses to increase the delay.
Each pause counts as a digit.
4) Press the memory key again.
5) To store this number as one of the ten speed dial numbers, enter a
digit from 0 to 9. If there is already a number in that speed dial
setting, it will overwrite the previously stored number without
warning. You will hear a confirmation tone indicating that the
number has been stored.
NOTE: When storing numbers into memory, if the handset is idle
(i.e., no key is pressed) for more than 30 seconds, it will beep rapidly, and the phone
will return to standby mode.
Dialing a Stored Number
1) When the phone is in standby mode, press the talk key, and listen for a dial tone.
2) Press the memory key and enter the speed dial entry (0-9) that has the stored number you
want to dial. (If you enter a digit that does not contain a stored number, the handset will
beep rapidly, and the phone will not dial.)

Memory
Store up to ten 20-digit numbers in memory for quick dialing.
Storing a Number in Memory
1. Make sure the phone is OFF (not in TALK mode).
2. Press the MEMORY button.
3. Press a number (0-9) to store the dialed number in that memory location.
4. Press the MEMORY button again.
5. Use the handset number keypad to enter the telephone number (up to 20 digits, including pauses) and press the MEMORY button again to save the number. The unit beeps to confirm.
6. To enter another number in a different memory location, return to step 1 and repeat the process.

1) Pick up the handset and press the STORE button
2) Dial in the number you wish to store
3) Press the STORE button again to indicate that you have completed the number
4) Press the location where you want to store the number (i.e. 1, 2, …9, or 0)

MEMORY

Store as many as 12 numbers in memory for easy dialing. Three can be stored in the Emergency Quick Dial locations, and nine additional numbers can be stored in the numbered keys (1-9).

STORING A NUMBER IN MEMORY

1. Press SPEAKER (or pick up the handset).
2. Press STORE.
3. Dial the number to be stored (up to 16 digits).
4. Press STORE button.
5. Press a Memory Location (1-9 on the keypad), or an EMERGENCY QUICK DIAL button.
6. Press SPEAKER (or hang up the handset). 7. Record the phone number on the memory directory (located under the plastic cover).

ADDING A PAUSE TO THE DIALING SEQUENCE

Use the REDIAL button to insert a delay in the dialing sequence when storing a number, for example, when you need to dial 9 to get an outside line. Press REDIAL at the point in the dialing sequence in which a pause is required.

CHANGING A STORED NUMBER

Change a stored number by replacing it with a different number.

DIALING A NUMBER FROM MEMORY

You can dial numbers from memory when using the handset or speakerphone. When you get a dial tone, press the MEMORY DIAL button followed by the memory location (1-9) for the number you want to dial.