Hi all i need a bit of help?

i sold my beocom 2400 on ebay and it went to singapore but the guy said it wont work but i was on a call with it just before i boxed it up, he said he had tried different leads in the phone but still wont work so he complained to ebay and they have give him a full refund! (would this phone still work in singapore?)

I got the phone back this morning and tested it myself and now it does not work! when the batteries are in all the menu functions work but no dial tone without the batteries nothing works so its not getting any power from the line?

What i would like to know is could he have caused this by putting different leads and connections in?

Can anyone advise on what could be wrong with it?

It does ring sometimes when people call but i cant answer it

Cheers

Mark