[cisco-voip] PVDM

[James Buchanan]

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 <abucho at 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.buchanan2 at 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 <abucho at 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 at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>
>>>
>>
>
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