Difference HWIC,WIC,VWIC

Unanswered Question
Nov 14th, 2007


What is the difference between VWIC,WIC and HWIC cards?

I have this problem too.
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Paolo Bevilacqua Wed, 11/14/2007 - 02:30

wic - wan interface card. the first original models.

hwic- high speed wan interface - the evolution of wic that is now in use on the ISR routers.

vic - voice interface card, support voice only.

vic2 - evolution of the above

vwic - voice and wan interface card. An E1/T1 card that can be user for voice or data.

vwic2 - evolution of the above.

Hope this helps, please rate post if it does!

sumesh_un Wed, 11/14/2007 - 03:05

that was helpful !!

However what is that makes VWIC better suited for Voice and when we say it supports Voice does it mean its better optimized for packetized voice?

Paolo Bevilacqua Wed, 11/14/2007 - 03:27

Hi, the VWIC is a primary digital interface and does well both voice and data.

Voice means connecting to telco or pbx.

Data means connecting to E1/T! circuits possibly channelized, , or PRI for data only calls.

The alternative to do data only on primary digital, is NM-xCE1/T1.

The alternative to do voice , and some data features, on primary digitial interface, is NM-HD-x-xxx. This will at the end use a VWIC too, installed into the NM.

If you are using ISR router, using the VWIC or VWIC2 is a better choice in most cases.


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