anchor.diff:  process(f, 'alert-info', Info) when is_record(Info, sip_hdr_info) ->
       URI = sip_uri:format(Info#sip_hdr_info.uri),
       Bin = <<?LAQUOT, URI/binary, ?RAQUOT>>,
  -    append_params(Bin, Info#sip_hdr_info.params);
  +    format_params(Bin, Info#sip_hdr_info.params);
   
   %% 20.5 Allow
   %% http://tools.ietf.org/html/rfc3261#section-20.5
  
positive.code: process(f, 'accept', Accept) when is_record(Accept, sip_hdr_mediatype) ->
      Type = sip_syntax:format_name(Accept#sip_hdr_mediatype.type),
      SubType = sip_syntax:format_name(Accept#sip_hdr_mediatype.subtype),
      append_params(<<Type/binary, ?SLASH, SubType/binary>>, Accept#sip_hdr_mediatype.params);
  
  %% 20.2 Accept-Encoding
  %% http://tools.ietf.org/html/rfc3261#section-20.2
  
negative.code:                   Quoted = sip_syntax:quote_string(DisplayName),
                    <<Quoted/binary, " ", ?LAQUOT, URIBin/binary, ?RAQUOT>>
            end,
      format_params(Bin, Addr#sip_hdr_address.params).
  
  
  %% Parse accept-range or media-type grammar
  