FW: Emergency Services and Service classes

Folts, Harold foltsh at NCS.GOV
Mon Apr 30 09:11:12 EDT 2001


G'Day,

The H.248/Megaco binary syntax uses BER. Annex C specifies the values of
TLV for this encoding. However the value of a property may actually be
encoded in PER. So thus in the OLC case its the PER encoding of the OLC
structure.

Christian

Tom-PT Taylor wrote:
>
> H.248 Annex C uses BER.
>
> > -----Original Message-----
> > From: Muhammad Mukarram Bin Tariq [mailto:mmukarrams at YAHOO.COM]
> > Sent: Monday, April 16, 2001 6:53 PM
> > To: ITU-SG16 at MAILBAG.INTEL.COM
> > Subject: Binary Encoding of H.245 Related Properties given in Table
> > C/H.248
> >
> >
> > Dear All,
> >
> > My question is regarding the encoding of the H.245 related
> > properties listed in
> > Table C/H.248. I presume that all these property values are
> > encoded according
> > to PER. Also that the entire MultimediaSystemControlPDU is
> > encoded, instead of
> > just the message structure. e.g to encode an OLC, we should
> > encode the entire
> > MultimediaSystemControlPDU that contains the OLC message, or
> > just the OLC
> > message structure.
> >
> > I am asking this question because in the presence of "Tags"
> > it is quite
> > possible to live without encoding the entire
> > MultimediaSystemControlPDU.
> >
> > Regards,
> >
> > Muhammad Mukarram Bin Tariq
> >
> >
> >
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> >
> >
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