High Telephone Bill!

The domestic phone-bill was exceptionally high.
 
This prompted the man of the house to call for a family-meeting after dinner.
 
Dad :
People, listen carefully, this high usage of our telephone is unacceptable.
You have to limit the use of it.
I do not use the home telephone at all, because I use the one at my work-place.
 
Mum :
Same here.
I hardly use our home telephone as I also use my office's telephone.
 
Son :
Me too.
I never use the home phone.
I always use the mobile provided by my company.
 
Then they all looked at the foreign maid.
 
Maid :
So, what is the problem, huh ?
Don't we all use our work-place telephones ?!!!