Apparently you can throw anything in front of "as a service": software, platform, cucumbers, infrastructure. Cloud Collaboration is a new joint venture between Cisco and Telstra which offers unified communications as a service.
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Like other 'as a service' offerings, the product is charged on a per-month, per-user basis. Details on the actual product are somewhat scarce right now; Telstra says it will begin offering options, including telepresence as a service, in the "coming months". I'm attending the Cisco LIVE conference in Melbourne this week, so I'll share more details if they come to hand.