One thing to be aware of is some distributors will give you two 16 cards rather than one 32 when you buy the upgrade SKU. Make sure to specifically request a single PVDM so that you can easily add another PVDM to the spare slot eventually when needed.
On Wed, May 21, 2014 at 3:57 AM, James Buchanan <james.buchan...@gmail.com>wrote: > Exactly. However, you may want to price adding the 64-channel versus > upgrading the 16 to a 64 and adding a 32. It'll probably be close in price, > but just compare. An alternative would be to just upgrading the 16 to a > 128, and that would leave you a free slot for more DSPs in the future. > > > On Wed, May 21, 2014 at 9:53 AM, Abebe Amare <abu...@gmail.com> wrote: > >> Thanks James for the explanation. >> From your reply I understand that I have a 32 channel DSP on the >> PVDM3-16U32. If I purchase a PVDM3-64, on top of the existing one, I will >> have 96 channels. Is that correct? >> >> best regards, >> >> Abebe >> >> On Wed, May 21, 2014 at 10:22 AM, James Buchanan < >> james.buchan...@gmail.com> wrote: >> >>> Hello, >>> >>> They are taking the 16-channel DSP and upgrading it to 32-channels. >>> >>> The number of DSP channels you need depending on how many channels of >>> the PRI you intend to use, plus conferencing and transcoding. This >>> particular VWIC card can do 60 channels as an E1 and 48 channels as a T1. >>> Do you intend to configure two PRIs? If so, you need one DSP channel per >>> T1/E1 channel as a minimum. I would recommend upgrading the 32 channels to >>> a minimum of 96 channels so that you have enough resources for both T1/E1 >>> ports plus transcoding and conferencing. >>> >>> Now, the number of DSP channels also depends on what codec you intend to >>> use. For example G.729 is a high-density codec, meaning that more DSP >>> channels might be required for transcoding. G.729b does not use as many DSP >>> channels. >>> >>> I hope this helps! >>> >>> James >>> >>> >>> On Wed, May 21, 2014 at 9:14 AM, Abebe Amare <abu...@gmail.com> wrote: >>> >>>> Hi everyone, >>>> >>>> The following is a snippet from the detail order for Cisco 2901 voice >>>> router: >>>> >>>> 1. C2901-CME-SRST/K9 - 2901 Voice Bundle w/ PVDM3-16,FL-CME-SRST-25, >>>> UC License PAK >>>> 2. PVDM3-16U32 - PVDM3 16-channel to 32-channel factory upgrade >>>> >>>> What does the PVDM3-16U32 mean? is it a separate PVDM or license? also >>>> if I want to purchase a VWIC3-2MFT-T1/E1, what is the PVDM3 type I have to >>>> get? (I dont have the right login credentials to use DSP calculator) >>>> >>>> best regards, >>>> >>>> Abebe >>>> >>>> >>>> >>>> _______________________________________________ >>>> cisco-voip mailing list >>>> cisco-voip@puck.nether.net >>>> https://puck.nether.net/mailman/listinfo/cisco-voip >>>> >>>> >>> >> > > _______________________________________________ > cisco-voip mailing list > cisco-voip@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-voip > >
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