How to find out your phone number?

[MeatLoaf]

We have a phone socket in our house and it had a dial tone. Is there a way to discover its phone number?

Obviously ive tried to ring my mobile from it but outgoing calls are barred. Is there a way of discovering its number?

 

[MeatLoaf]

Cheers 17070 is the one. Just need some charge in the wireless phone now lol