Re: [Sip-implementors] FAX T38 issue

[Jan Bollen]

Hello Rakesh,  You will find the ITU-T.38 standard on ITU's website: http://www.itu.int/rec/T-REC-T.38/en and select the version that has "in force" as status.  Cheers,  Jan On 14/06/2017 9:52, Rakesh wrote: Hi Jan, Sorry missed one more thing to ask. As you have mentioned the standard can you please share me the doc for that? I am not getting from Google since the search shows too many stuff. BR/// Rakesh Kumar Mohanty On Wed, Jun 14, 2017 at 1:19 PM, Rakesh <rak...@gmail.com> wrote: Hi All, @Jan Many thanks to your answer. Thanks all for the feedback. @Sampat can you let me know from which reference you have mentioned that it will be treated as Error? Moreover, I am not asking for any Propriety node behavior. I just want to know the communication between the Media Controler and Media Gateway haveing the observed behavior anything relevant standard to answer that the SDP should/must contain the xyz... media attribute. BR/// Rakesh Kumar Mohanty On Sat, Jun 10, 2017 at 12:22 AM, Jan Bollen <jan.bol...@scarlet.be> wrote: 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

_______________________________________________
Sip-implementors mailing list
Sip-implementors@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors