Hi Rakesh, Looking at section D.2.3.1 of the ITU_T T.38 standard, I have the impression that at least the T38Error correction is necessary when udptl as transport is used, because it is _not_ marked as optional... quote: UDPTL Options Maximum Buffer Size Att-field=T38FaxMaxBuffer Att-value = 1*(DIGIT) ;optional Maximum Datagram Size Att-field=T38FaxMaxDatagram Att-value = 1*(DIGIT) ;optional Error Correction Att-field=T38FaxUdpEC Att-value = t38UDPFEC | t38UDPRedundancy T38VendorInfo Att-field=T38VendorInfo Att-value = t35country-code SP t35extention SP manufacturer-code t35country-code = 1*(DIGIT) t35extension = 1*(DIGIT) manufacturer-code = 1*(DIGIT) ;optional ;0 to 255 for t35country-code and t35extension ;t35country-code is defined in T.35 Annex A. ;t35extension is defined in T.35 Annex B ;The value of "manufacturer-code" is assigned nationally unquote kind regards, Jan |
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