[cisco-voip] video conferencing resources for 8945, 9951, 9971 phones

[Nick Matthews]

Last time I looked, the lowest PVDM3 that supported video was the 128.
It's worth double checking, it caught me by surprise when I heard that.
The PVDM3's are good because you don't need to drop $100k on a MCU to get
started.  There's also Callway and others are hosted services that partners
offer that you can pay-as-you-need or pay-as-you-use.

-nick

On Wed, May 2, 2012 at 8:59 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

> Thanks for this and the previous email.
>
> I noticed that when I added additional types and made it a heterogeneous
> class, the resource requirements jumped significantly.
>
> We have no bandwidth issues at this time, so I can use the highest setting
> without issues. The one question I had, and of course it might mean
> experimenting, if I have four phones set to VGA, does the phone require the
> DSPs to present the far side images on the phone? Does this change the
> settings?
>
> Sent from my iPhone...
>
> "There's no place like 127.0.0.1"
>
> On May 2, 2012, at 4:35 PM, Jason Burns <burns.jason at gmail.com> wrote:
>
> Misspoke there. If you want different resolutions in the conference, then
> go with the heterogeneous type. As soon as you pick two different
> resolutions you automatically get the heterogeneous, 2 class. 3 resolutions
> is a 3 class heterogeneous, etc.
>
> So for you the H.264 Homogeneous with VGA would allow you full video
> conferencing at max resolution (AND max bandwidth).
>
> If bandwidth is a concern you can select a smaller homogeneous size for
> your conferencing profile and the phones should negotiate down to that size
> when they're in the conference.
>
> If you have extra DSPs this is where you can use a heterogeneous
> conference and throttle down your remote users with locations bandwidth
> (lower the video kbps) and allow your users local to the CFB to use higher
> resolutions. This could also be used to avoid going to the lowest common
> denominator if some endpoints didn't support VGA.
>
> -Jason
>
> On Wed, May 2, 2012 at 4:21 PM, Jason Burns <burns.jason at gmail.com> wrote:
>
>> Check out this link:
>>
>>
>> http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/feature/guide/Video-trans-conf.html#wp1054259
>>
>> You have to know your endpoints and what frame and bit rates they support.
>>
>> http://en.wikipedia.org/wiki/Common_Intermediate_Format
>>
>>
>> http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps10451/ps11158/data_sheet_c78-649595.html
>>
>> 8945 - 640x480 @ 30fps (VGA)
>>
>> 9951 - also VGA
>>
>>
>> http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps10453/ps10513/data_sheet_c78-565680.html
>>
>> So you can get away with a homogeneous conference profile if that's all
>> you're going to have. If you want to support some people in the conference
>> at higher rates you'd want to go with the homogeneous setup. The doc
>> explains the limits / benefits of each.
>>
>> There are some really good tables in the first link to that explain the
>> different formats. I don't know if I can easily summarize it!
>>
>> -Jason
>>
>>  On Wed, May 2, 2012 at 3:23 PM, Lelio Fulgenzi <lelio at uoguelph.ca>wrote:
>>
>>>
>>> I'd like to ensure (or at least try to ensure) that I have at least one
>>> or two video conferencing resources for a batch of 8945s and 9951s/71s that
>>> I have available for testing.
>>>
>>> The options for video conferencing resources on the DSP calculator are
>>> quite vast (for someone who has no experience in video).
>>>
>>> Anyone have any suggestions for the parameters?
>>>
>>> Conference Type:Homogeneous (1 Class) /Heterogeneous (2,3,4 Classes)
>>>
>>> Video Capabilities: H.264 XXX /H.263 XXX
>>>
>>> Types: ?
>>>
>>> I'm guessing I could just check off all the video capabilities of the
>>> phones, but not sure what the classes are for.
>>>
>>> Would I need Video transcoders for this? Can I assume they'll all talk
>>> the same?
>>>
>>> ---
>>> Lelio Fulgenzi, B.A.
>>> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
>>> (519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)
>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>> Cooking with unix is easy. You just sed it and forget it.
>>>                               - LFJ (with apologies to Mr. Popeil)
>>>
>>>
>>>
>>> _______________________________________________
>>> cisco-voip mailing list
>>> cisco-voip at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>
>>>
>>
>
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