public String getTelephoneNumber() returns the telephone
      number from the Company section of a person's profile.
    Attention: Introduced in SDK version 1.3.
  Parameters
None
Returns
Returns a String representing the telephone number in the company's address. Returns null if not available.
Example
    PersonService ps = session.getServiceRegistry().getPersonService();
    
    Person p = ps.getPerson("joeuser");
    
    Company c = p.getCompany()
    
    Log.d(TAG, "telephone number: " + c.getTelephoneNumber());
      
      Would produce output such as the following:
telephone number: +44 (0)1628 876 600