description:
Phone number validation
----------------------------
revision 1.5
date: 2002/08/10 05:13:25;  author: kennedyh;  state: Exp;  lines: +4 -4
documentation fixes
----------------------------
revision 1.4
date: 2002/08/10 04:36:04;  author: kennedyh;  state: Exp;  lines: +9 -5
enforcing consistency and simple tests
----------------------------
revision 1.3
date: 2000/09/15 20:53:12;  author: kennedyh;  state: Exp;  lines: +30 -5
added convenience method for app beauty
----------------------------
revision 1.2
date: 2000/09/14 19:54:23;  author: kennedyh;  state: Exp;  lines: +132 -3
inital production version
----------------------------
revision 1.1
date: 2000/09/14 14:29:07;  author: kennedyh;  state: Exp;
Initial revision
=============================================================================