[cisco-voip] 3845 DSP

Thu Feb 11 09:23:34 EST 2010

This is a software-layer feature, so you should see the same
improvements whether you have 2nd or 3rd gen DSPs.  The world is
getting excited about faxes and modems again!

-nick

On Wed, Feb 10, 2010 at 8:02 PM, Justin Steinberg <jsteinberg at gmail.com> wrote:
> nick do you know if this 15.1(T) feature will be require PVDM3s ?
>
> Assuming the 15.1(T) ISRg2 terminates the TDM PSTN connection, will V90/32
> work for fax/modems that connect via a VG224 ?    Or will this only work for
> devices off an FXS on an ISRg2 with PVDM3s and 15.1(1)T ?
>
> Justin
>
> On Tue, Feb 9, 2010 at 9:24 PM, Nick Matthews <matthnick at gmail.com> wrote:
>>
>> This is one of the 15.1(1)T features that will be available in the
>> next few months.  V.90 and V.32 ( speeds greater than 14.4k) will be
>> supported for T38 and modem passthrough.  You are correct that
>> anything above that is best effort currently.
>>
>> -nick
>>
>> On Tue, Feb 9, 2010 at 7:46 PM,  <lelio at uoguelph.ca> wrote:
>> > There is mention in the docs that IOS v15 supports SG3 speeds natively.
>> > If you read the Fax guide it's in there.
>> > I can look for it later and send to the list, but I believe I posted it
>> > (or
>> > a snippit) to the list before so you might find it in the archives.
>> >
>> > Lelio Fulgenzi, Senior Analyst
>> > Computing & Communications
>> > University of Guelph
>> > 519-824-4120 x56354
>> > ...sent from my iPod - please pardon my fat fingers ;)
>> > [XKJ2000]
>> > On 2010-02-09, at 5:14 PM, Justin Steinberg <jsteinberg at gmail.com>
>> > wrote:
>> >
>> > i'm curious about what speed modem/fax transmission they can support.
>> > I've
>> > always heard the 5510s supported 14400 and anything above that was best
>> > effort.  It would be nice if the new DSPs could transmit at SG3.
>> >
>> > Anyone know anything about that ?
>> >
>> > On Mon, Feb 8, 2010 at 3:57 PM, Peter Slow <peter.slow at gmail.com> wrote:
>> >>
>> >> yes, sp2600 DSPs are the PVDM3s. they are completely different from
>> >> the 5510 / PVDM2s and there are limitations as to their coexistence
>> >> within the same chassis. if you want to see what the capabilities of
>> >> your PVDM3 are, you can use the command "show voice dsp capabilities"
>> >> and see some interesting output. I'm not sure about the specific video
>> >> capabilities other than that there will be some. Ive heard video
>> >> specific rumors but since i don't know facts about them i'll keep my
>> >> yap shut ;)
>> >>
>> >> -Peter
>> >>
>> >> On Mon, Feb 8, 2010 at 9:30 AM, Lelio Fulgenzi <lelio at uoguelph.ca>
>> >> wrote:
>> >> >
>> >> > my 3945 is out of the box, and i needed to do a 'show voice dsp
>> >> > detailed' to get SP2600
>> >> >
>> >> > are they these?
>> >> >
>> >> > http://news.thomasnet.com/fullstory/552559
>> >> >
>> >> > ---
>> >> > Lelio Fulgenzi, B.A.
>> >> > Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
>> >> > (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
>> >> >
>> >> > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> >> > Cooking with unix is easy. You just sed it and forget it.
>> >> >                               - LFJ (with apologies to Mr. Popeil)
>> >> >
>> >> >
>> >> > ----- Original Message -----
>> >> > From: "Jason Shearer" <jshearer at amedisys.com>
>> >> > To: "Mark Holloway" <mh at markholloway.com>
>> >> > Cc: "Lelio Fulgenzi" <lelio at uoguelph.ca>, cisco-voip at puck.nether.net
>> >> > Sent: Monday, February 8, 2010 7:30:47 AM GMT -05:00 US/Canada
>> >> > Eastern
>> >> > Subject: RE: [cisco-voip] 3845 DSP
>> >> >
>> >> > Interesting.  I’ll see what info I can squeeze out of my account
>> >> > team.
>> >> > Definitely looks like a completely different architecture.  Can
>> >> > someone that
>> >> > is running a PVDM3 get us a ‘show voice dsp’ to see what the chipset
>> >> > is?
>> >> >
>> >> >
>> >> >
>> >> > Jason
>> >> >
>> >> >
>> >> >
>> >> > From: Mark Holloway [mailto:mh at markholloway.com]
>> >> > Sent: Sunday, February 07, 2010 10:15 PM
>> >> > To: Jason Shearer
>> >> > Cc: Lelio Fulgenzi; cisco-voip at puck.nether.net
>> >> > Subject: Re: [cisco-voip] 3845 DSP
>> >> >
>> >> >
>> >> >
>> >> > Unfortunately the product specification for the PVDM2 and PVDM3 are
>> >> > listed in two totally different formats.  The PVDM2 product spec is
>> >> > very
>> >> > forthcoming in stating the PVDM2 uses Texas Instruments DSP and runs
>> >> > at
>> >> > either 200mhz or 175mhz.  The specification for PVDM3 doesn't state
>> >> > what
>> >> > type of DSP is used or the clock cycles.  It only says "Multicore DSP
>> >> > technology" - so I don't think Cisco wants to share that information
>> >> > right
>> >> > now.  It's possible that once someone gets their hands on one they
>> >> > will know
>> >> > more information.
>> >> >
>> >> >
>> >> >
>> >> > It's not easy to find details about video and the PVDM3.  Perhaps
>> >> > video
>> >> > conference mixing?  The following is the closest thing I could find.
>> >> > "Video
>> >> > feature ready"
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > On Feb 7, 2010, at 6:15 AM, Jason Shearer wrote:
>> >> >
>> >> > The PVDM2-64 and PVDM3-64 are the same price ($3200 list) although
>> >> > you
>> >> > can get them in much denser versions.  Has anyone run into any
>> >> > problems or
>> >> > flakiness with the v3’s?  Are they running the same 5510 chipset?
>> >> >
>> >> >
>> >> >
>> >> > One thing that is interesting is that it says it is a “voice and
>> >> > video”
>> >> > DSP.  What does this mean?  Is it going to be able to transcode or
>> >> > mix
>> >> > video?
>> >> >
>> >> >
>> >> >
>> >> > Jason
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On
>> >> > Behalf Of Mark Holloway
>> >> > Sent: Saturday, February 06, 2010 11:32 AM
>> >> > To: Lelio Fulgenzi
>> >> > Cc: cisco-voip at puck.nether.net
>> >> > Subject: Re: [cisco-voip] 3845 DSP
>> >> >
>> >> >
>> >> >
>> >> > The new PVDM3 modules are great. They are more expensive than PVDM2
>> >> > of
>> >> > course, but they serve their purpose well.
>> >> >
>> >> >
>> >> >
>> >> > Conferencing, Transcoding, and Transrating Services
>> >> >
>> >> > The PVDM3 modules support digital voice connections, analog voice
>> >> > connections, conferencing, and universal transcoding services. The
>> >> > same DSPs
>> >> > on the PVDM3 modules can now support all the services with a single
>> >> > DSP
>> >> > image. In addition, the PVDM3 supports a higher number of conference
>> >> > sessions and a higher number of participants per conference than the
>> >> > PVDM2.
>> >> > The PVDM3-256 can support up to 6 conferences with 64 participants in
>> >> > each
>> >> > conference and up to 66 conferences with 8 participants in each
>> >> > conference.
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > <image001.png>
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > On Feb 5, 2010, at 5:27 PM, Lelio Fulgenzi wrote:
>> >> >
>> >> >
>> >> > I believe you can configure only one software bridge per server, or
>> >> > in
>> >> > retrospect you can configure a server as a software bridge only once.
>> >> >
>> >> > I believe it takes some serious resources to run as a software bridge
>> >> > so
>> >> > you don't want to be doing it on your publisher or any subscribers
>> >> > that are
>> >> > close to capacity. If you have a standalone DHCP/TFTP server in your
>> >> > design,
>> >> > you should be able to get away with using that.
>> >> >
>> >> > A software bridge does not have the hardware limitations w/ number of
>> >> > conference participants or number of conferences, but the system will
>> >> > just
>> >> > die if it can't keep up.
>> >> >
>> >> > I haven't done a cost analysis, but I still think it would be cheaper
>> >> > to
>> >> > buy a small router with lots of DSPs and use that than to install and
>> >> > maintain CCM box.
>> >> >
>> >> > ---
>> >> > Lelio Fulgenzi, B.A.
>> >> > Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
>> >> > (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
>> >> >
>> >> > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> >> > Cooking with unix is easy. You just sed it and forget it.
>> >> >                               - LFJ (with apologies to Mr. Popeil)
>> >> >
>> >> >
>> >> > ----- Original Message -----
>> >> > From: "Robert Shearrill" <rshearri at uchicago.edu>
>> >> > To: cisco-voip at puck.nether.net
>> >> > Sent: Friday, February 5, 2010 6:22:21 PM GMT -05:00 US/Canada
>> >> > Eastern
>> >> > Subject: [cisco-voip] 3845 DSP
>> >> >
>> >> > Can some one tell me if i remove all my hardware conf bridges, how
>> >> > many
>> >> > software conf bridges will i have and how are they used. I am version
>> >> > 7.1.2
>> >> > CCUM.
>> >> >
>> >> >
>> >> >
>> >> > How many software conf bridges do i have per server?
>> >> >
>> >> >
>> >> >
>> >> > Thanks
>> >> >
>> >> >
>> >> >
>> >> > Robert
>> >> >
>> >> > _______________________________________________ cisco-voip mailing
>> >> >
>> >> > list cisco-voip at puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-voip
>> >> >
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>> >> >
>> >> >
>> >> >
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