Binatone vesta 1215 how do i get numbers to go on other phones

Question edited for clarity, full maker model (what it is)'.
Question moved from Cellphones.

The manual for the 1305 is a similar phone. Here is the details for resetting.

https://www.manualslib.com/manual/1714110/Binatone-Vesta-1305-Call-Blocker.html?page=27#manual

Don't get anything from the first link as it may be a malicious site

https://www.google.com/search?q=binatone+vesta+1215+manual

..

The display could be failing.

Vesta 1305 <?>

Be sure nothing is covering the microphone. Be careful not to cover microphone with your chin or finger.

go to settings and switch it on

None is available for download online.

with cordless phones the problem is that the hand sets have to be recognized by the base station ( paired) and unless you have the exact hand piece make and model this pairing and recognition will not happen
if you can get 2nd hand units for the 3325 base then the base will accept them ( any number of additions ) but if the hand piece is different it will not work
you you need extra hand pieces then it may be best to consider a new system where you can buy extra phones and chargers

managed to find a helpline number for binatone problem solved thak you