Choosing rthe right ISR

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Sep 23rd, 2009
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I'm preparing to increase the size of our VoIP network and am aware of the principle differences between the ISRs. Our remote sites will have subscribers, so SRST is not really an issue, and the ISRs are only being used to terminate PRIs and will not be used to route data traffic. This being the case, are there caveats to using 2811 routers with 8 VWIC ports? I don't really know what to expect by way of offnet traffic, but have had success with the 2811 line and am wondering if I can repurpose for the new network and not have too much to worry about.


Also, I am planning on configuring some hardware conferencing but I have no idea yet how popular it will be.

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Paolo Bevilacqua Wed, 09/23/2009 - 09:14
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If you need to terminate 8 PRI or more, consider AS5400HPX rather than ISR routers, that are general purpose boxes after all.

Paolo Bevilacqua Wed, 09/23/2009 - 09:26
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Use AS5400, CUCM won't know the difference.

Paolo Bevilacqua Wed, 09/23/2009 - 09:41
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Sorry, not sure.

If you want safe results, use H.323 instead.

Nicholas Matthews Wed, 09/23/2009 - 12:39
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CUCM does not support the AS5400 for MGCP. The supported box is the VGD-1T3, and will do transcoding / conferencing / media termination with CUCM.


-nick

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