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I'm playing around with a small Lync implementation in my home office and would like to try replacing my 3cx server with it. Currently I use callcentric as my VoIP provider, but based on another answer on serverfault, it looks like CallCentric won't work with Lync.

I was wondering if anyone knew of any cheap VoIP providers that support Lync?

I tried to find a provider that noted Lync support on their site, but was unnable to find one.

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up vote 1 down vote accepted

Used intelepeer for the last 8 months with no issues for OCS 2007 R2 and Lync 2010. They are a certified partner and it "just works".

Here's a full up to date list at Microsoft.

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Awesome! Thanks for the list. – Joshua Dale May 12 '11 at 1:41
One thing to note is you have to be aware of your nat around your mediation server. But Intellipeer has great support. – Kevin Krautle Jun 15 '11 at 0:41

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