what hardware to choose? need assistance

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Mar 29th, 2010
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Hello!


I  need cisco SIP gateway to work with AVAYa pbx and OCS server as on this  topology.

cisco1.jpg


digging down the NET I have found that CUBE will be sufficient.

but from the other side I have found thtat CME will fill my needs (especially working with AVAYa) ...

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Tommer Catlin Tue, 04/06/2010 - 15:06
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In regards to IOS, any ISR router will work for you.  The CUBE is a border element that will proxy and hide your internal network from external SIP connections, such as your PSTN provider not having direct access to CUCM or CME.   CUBE is a little overkill for what you need.


The size of the router will depend on the number of SIP connections coming to/from your endpoints such as avaya and OCS.   Its really just SIP to SIP and dial peers on the router to make this work.


The trick is will OCS *and* avaya talk the same SIP to/from the router.    2900/3900  or 2800/3800 will work fine for your application.  If its small, you can probably get away with 1800 series

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