SIP-trunking a Nortel (now Avaya) CS1k to Exchange UM.

  I left a lot of my heritage and many familiar faces behind when I decided to jump ship from the PABX world in early 2010 and focus on this UC caper full-time, so I was delighted to recently have the opportunity to work with some old colleagues integrating a Nortel CS1000 (aka CS1k) with …

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