I have a XS1455 answering m/c. Have a problem

The way you have written this, it sounds like you are expecting it to do something it isn't meant to do. You stated

"but it doesn't come to my messages".

Are you expecting the messages to be forwarded to say a cellphone?

You set the Answerphpne to answer and a light should be lit. When you get a call and a message the light flashes. You press a button and you listen to it.

Your manual. It appears to be Australian, we are in North America.

https://www.telstra.com.au/content/dam/tcom/personal/support/pdf/home-phone/Telstra-Call-Gaurdian-301-cordless-phone-with-answering-machine.pdf

..

Recorded greeting....assuming voice mail greeting. VM is switch related vs stored in the phone. You will need to log into VM and choose the option for greeting, then you can overwrite your current greeting

Here is the manual for your phone. You can download the manual and the instructions for setting up your answering machine are on page 43:

http://www.uniden.com/pdf/DECT1580-3om.pdf

Setting Up the Answering System
You can set up your answering system's features from the handset. Only one handset at a time can access the answering system menus.

Note: If you have multiple bases, select the base with answering system you want to access (see page 15).

Recording a Personal Greeting
Your answering system comes with a pre-recorded outgoing message or greeting that plays when you receive a call: "Hello, no one is available to take your call. Please leave a message after the tone." You can record your own personal outgoing greeting. Your recorded greeting must be between two seconds and thirty seconds long.

Press /mute. The system announces the number of new and old messages, then starts to play the messages unless it has no messages.

Press 5 to stop the announcements or message playback. You will hear intermittent beeps indicating that the system is in the command waiting mode.

Press 8 to start the recording. The system announces, "Record greeting." Begin recording after the announcement.

When you finish recording, press 8 again or press 5. You will hear a confirmation tone, and your recorded greeting plays back for you.

Selecting a Greeting

Once you have recorded a personal greeting, the phone automatically switches to your personal greeting. You can
also switch back and forth between the pre-recorded greeting and your own greeting at any time.

Press /mute. The system announces the number of new and old messages, then starts to play the messages unless it has no messages.

Press 5 to stop the announcements or message playback. You will hear intermittent beeps indicating that the system is in the command waiting mode.

Press 6. The system plays the current greeting.

Greeting message
When the unit answers a call, callers
are greeted by a greeting message. You
can record your own greeting message
or use a prerecorded greeting
message.
Recording your greeting
message
You can record your own greeting
message (max. 2 minutes and 30
seconds). If you do not record a
greeting message, a prerecorded
greeting message is used.
1 {MENU}
2 {V}/{^}: “Answering device” i
{OK}
3 {V}/{^}: “Record greeting” i
{OK}
4 After the handset beeps, speak
clearly about 20 cm (8 inches) away
from the microphone.
5 To stop recording, press {OK}.
6 {OFF}
Using a prerecorded greeting
message
If you erase or do not record your own
greeting message, the unit plays a
prerecorded greeting message for
callers and ask them to leave
messages.

Hello folks, I offer no guarantee on this but it worked for me.
1. record own greetings >menu>answering device> record greeting>then after recording own greetings press OK
2. Erase own greeting just recorded >menu>answe...device>erase messa...>erase greet...>Ok
3. Then try Menu> answering device>play greeting....voila. Prerecorded message plays.
Hope This helps.

There are two models - The TRU8885 and the TRU8885-2 -
For the TRU8885 the manual PDF form >>>Click Here<<<
The solution is on page 24 + 57 It starts on Pg 24 as...

Record Greeting allows you to record a personal outgoing message (greeting) which
the answering system automatically plays when you receive a call.

1) Enter the Answring Setup menu, and then the
Record Greeting sub-menu (see "Entering the
Menu" on page 16). To record greeting press
[STA RT] appears.

2) Press the START soft key. You will hear “Record Greeting.“ The message counter
displays 30 and then begins to count down.

3) Position yourself near the base microphone and record your greeting.

4) When you are finished recording, press the STOP soft key. Your greeting will
playback for confirmation.

Selecting Your Greeting (Base only)

Select Greeting allows you to choose between the two outgoing messages, a prerecorded
message or your own greeting.

1) Enter the Answ. Setup menu, and then the
Select Greeting submenu (see "Entering the
Menu” on page 16). P lay back greetin g
appears, and the current outgoing message is
played. LCD is an example if you recorded your greeting.

2) Once you have recorded a personal greeting, press the CHANGE soft key to
choose the greeting. The selected outgoing message is played. Each time you
press the CHANGE soft key, the phone switches the outgoing message between
the prerecorded and the personal outgoing message.

There is more on the PDF - Just ask if you need more

For the TRU8885-2 is essentially the same. The manual PDF form >>>Click Here<<<

If we need to dig further, just ask! :) We are just a mouse click away!
Thanks
Len

I read thru the manual. There is nothing bout recovery of factory messages. If you recorded your own, try deleting it. Or unplug the base from power and try a reset. This is from the manual. At the end, I gave you a link to the manual!

Using a pre-recorded greeting
message
If you erase or do not record your own
greeting message, the unit plays a prerecorded
greeting message for callers
and asks them to leave messages. If the
message recording time (page 39) is set
to “Greeting only”, caller messages
are not recorded and the unit plays a
different pre-recorded greeting message
asking callers to call again.


http://service.us.panasonic.com/OPERMANPDF/KXTG9331.PDF

enter answ.mach setup menu
then record greeting submenu
press start soft key
youll hear start recording mess
you have 30 sec v countdown to do message then it automatically uploads

#1 Try changing the 9Volt Battery
#2 Hold down the greeting button,wait a couple of seconds and record your message