anchor.diff:  %%           Contacts    = list() of contact record()
   %% Descrip.: determine if request is a properly formed wildcard
   %%           request (see RFC 3261 Chapter 10 page 64 - step 6)
  -%% Returns : true     |
  -%%           false    |
  -%%           throw({siperror, ...})
  +%% Returns : true            |
  +%%           false           |
  +%%           {siperror, Status, Reason}
  +%%           Status = integer(), SIP status code
  +%%           Reason = string(), SIP reason phrase
   %% - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
   %% there is only one Contact and it's a wildcard
   is_valid_wildcard_request(Header, [ #contact{urlstr = "*"} ]) ->
  
positive.code: 
      %% END Outbound TESTS
  
  
      mnesia:abort(ok).
  
  
  
negative.code: 		    {siperror, 500, "Server Internal Error"}
  	    end;
  	false ->
  	    none;
  	SipError when is_tuple(SipError), element(1, SipError) == siperror ->
  	    SipError
      end.
  
  %% return = ok       | wildcard processed
  