Table for User telephone num

Dear Experts,

I want the table to get the Telephone phone number of all users to send an SMS.

Actuall i am getting the telephone number of a user from "BAPI_USER_GET_DETAIL".

But i want all user phone numbers at a time.

For that i need  table to get all the phone numbers.

Please tell me if there is any table.

Regards,

Eswar.