[cisco-voip] PVDM

[Abebe Amare]

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
>>
>>
>>
>> _______________________________________________
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>>
>>
>
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