 
            
            
            
            
                17 Apr
                
                    2015
                
            
            
                17 Apr
                
                '15
                
            
            
            
        
    
                3:07 p.m.
            
        On Fri, Apr 17, 2015 at 12:41:52PM +0000, Shane Kerr wrote:
For ages the "phone" attribute has been mandatory in person objects (since 1995 with document RIPE 49 at least).
so, why have _any_ mandatory attributes in the first place? -Peter