[cisco-voip] PVDM

[Jim Reed]

What kind of voice ports do  you have on the router?  Analog POTS or PRI or...

If you don't have enough PVDM capacity, you can't configure all of the channels on the PRI or all of the POTS lines.  There is a DSP/PVDM calculator on Cisco's website that will tell you how much you need for a particular configuration.  Based on your symptom description, I'm not sure that this is your problem but never say never.
--
Jim Reed
Technology Wrangler
Swift Communications, Inc.
970-683-5646 (Direct)
775-772-7666 (Cell)

"Not only is it not right.
It's not even wrong."
       The Pauli Proverb
        Wolfgang Pauli


On 12/4/09 11:37 AM, "Kim, Hyoun S" <Hyoun.Kim at chartercom.com> wrote:

What specifically happens (or can go wrong) when you do not have enough DSPs on your PVDM module for a VoIP deployment?  Like for instance, if you have about 24 phones + 1 VG204 and you used a C2811 router with (1) PVDM2-16 and (1) VWIC2-1MFT-T1/E1.

I'm curious to know if the PVDM2-16 is my problem. I converted an office earlier this week to Cisco VoIP with the above equipment.  However, I'm finding that while outbound calls can be made (not sure how many simultaneously), I'm having a problem of people dialing in and getting a message saying that the call could not be completed or is disconnected.  I did not change any of the phone numbers and the number pool is the same.  The problem is random.  It occurs on some phones, then goes away.

Any ideas?


[cid:3342772562_268905]

________________________________

Hyoun Kim * Network Administrator I - East Division

640 Broadmor Blvd * Suite 80 * Murfreesboro, TN 37129
' 615.217.6245 * ' 859.312.6941 * 7 615.217.6255 * * Hyoun.Kim at chartercom.com <mailto:Hyoun.Kim at chartercom.com><mailto:Hyoun.Kim at chartercom.com>


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