HD in H.320

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petet
Trusted Contributor

HD in H.320

I had convinced myself that this wasn't possible on HDX codecs but & do have a vague recollection of a technote somewhere that said it was with certain pre-requisites.  Am I going bonkers or can you do HD in H.320?

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Kendo
Polycom Employee

Re: HD in H.320

Pete,  yes HD is possible over H320.  The restriction is you need 1mb bandwidth minimum. Placing the call at anything below 1024 will not give 720P.  Since most folks have 3 or 4 BRI's they will not be able to get 720.  A PRI is necessary.

Ken
Polycom
Sr. Product Support Technician

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Kendo
Polycom Employee

Re: HD in H.320

Pete,  yes HD is possible over H320.  The restriction is you need 1mb bandwidth minimum. Placing the call at anything below 1024 will not give 720P.  Since most folks have 3 or 4 BRI's they will not be able to get 720.  A PRI is necessary.

Ken
Polycom
Sr. Product Support Technician
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Uwe_Ansmann
Honored Contributor

Re: HD in H.320

That´s possible...

take a look @ the release notes here (page 6)

!

H.264 High Profile video encoding and decoding preserves video quality and
reduces the required network bandwidth. H.264 High Profile video encoding
and decoding in ISDN point-to-point calls is supported in version 3.0.1, with
the following restrictions.
• H.264 High Profile over ISDN is supported on the following HDX
systems:
— Polycom HDX 7000 HD with Hardware Version C
— Polycom HDX 8000 HD with Hardware Version B
— Polycom HDX 9006
• H.264 High Profile is supported only for People video, not Content video.
• H.264 High Profile is not supported in V.35 broadcast mode.

Kind regards,
Uwe
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