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Microsoft Cloud PBX Gains Traction As It Bids Us Adieu

Staff Writer's picture

This article was originally published on NoJitter

Cloud PBX might lack call features common in other corporate telephony platforms, but that hasn't stopped large enterprises from embracing it.

The future of Microsoft UC might be Teams and the telephony functionality it's gradually building into it. But the Microsoft UC strategy's very recent past centered around Skype for Business Online and Cloud PBX, and this is what Office 365 customers have been deploying for the past year or so. So rather than expound on what Teams Phone System will be able to do later, let's instead focus on what businesses have been doing with Skype for Business Online Cloud PBX to date.

I don't know about you, but when Microsoft introduced Cloud PBX a couple years back I wasn't overly impressed. It seemed like a good starting point, but the anemic set of call features needed some major improvements before it'd be adequate for most businesses. My skepticism deepened when Microsoft said sales efforts would target enterprises, as opposed to SMBs. Feature-to-feature Cloud PBX just wasn't on par with other corporate telephony platforms and services on the market.

Frankly, it still isn't on par with them, and I've spoken with plenty of enterprises that have turned up their noses to Cloud PBX as a result. But plenty of other large enterprises have had no such reaction. Microsoft showcased a number of these last fall at Ignite, with CIO, systems architects, and consultants going into a respectable amount of detail about their deployments. Among them were:

  • Atkins, a U.K.-based consultancy with 18,000 employees replacing its Cisco UC Manager PBXs with Cloud PBX. The company is an Office 365 shop, so Skype for Business was already on everyone's desktops and employees were using it to generate eight million minutes of audio conferences each month. This gave them an overall familiarity with Skype for Business, so the jump to Cloud PBX wasn't so large.
  • Koch Industries, a multinational conglomerate. More than 80,000 of its 120,000 employees have Office 365 and use Skype for Business for VoIP and online meetings. The company is standardizing on Cloud PBX for corporate communications and expects to have 80% of its end users transitioned over the next three years.
  • Tire Centers, a subsidiary of Michelin with about 2,000 employees, is replacing its antiquated Avaya PBXs (Merlin Magix!). The company only signed up for Office 365 in early 2017, so workers are getting corporate IM for the first time as they transition to Cloud PBX.

Marks & Spencer & Skype
However, the most details were about U.K.-based retailer Marks & Spencer, largely because it had an entire session dedicated to it. A retail powerhouse, Marks & Spencer has 85,000 employees and 450 stores in 58 countries. Last year the company launched a digital transformation initiative, called "Smarter Working," that had Microsoft's cloud technologies -- Office 2016, Yammer, OneDrive for Business, Skype for Business Online -- as its cornerstone, as Microsoft program managers and Avanade consultants shared during the session.

The company previously used a Mitel telephony platform, with separate systems for corporate offices and retail locations. It's in the process of migrating both (except, I think, contact center operations) to Cloud PBX (which I'll start calling Phone System now, since that's its new name). Having already deployed Office 365 and Skype for Business Online company-wide, M&S made a strategic decision to further leverage the latter for corporate telephony.

The transition away from Mitel came in separate phases, the first being to move all 7,000 office workers to Phone System and the next to transition the retail locations. The presenters didn't talk much about the latter, except to say that M&S wants to revolutionize communications in retail and that will take some more thought and planning.

But they did go into a bit of detail about phase one, which took about four months from start to finish and moved about 4,500 employees in U.K. offices off Mitel and to Phone System. Details include:

  • PSTN connectivity from Microsoft, as opposed to a third-party provider. The U.K. is one of the nine countries where Microsoft is registered as a telco.
  • An all-cloud deployment model. This is a cloud-only deployment, with no hybrid configurations complicating things.
  • No desk phones; headsets for everyone. For about two weeks each user had both a desk phone connected to the Mitel PBX and a headset connected to Phone System. This provided a period for people to get used to the latter before the former disappeared.
  • No Express Route. All voice traffic goes directly to the Internet, with each office having a pipe large enough for M&S to shoo away pesky QoS issues.
  • No ported numbers. Phone System supports number portability, but providers can drag their heels in actually doing it. Giving everyone new numbers was going to be faster, so that's what M&S did.
  • No Ethernet, only WiFi. The presenters provided a lot of detail about this in the session, and it's really quite interesting. But it's too in the weeds for this blog. Suffice it to say voice over WiFi was tricky, but eventually worked. Check out the session recording for more.
  • Conference rooms made "Skype for Business compatible." No further details about this, but it seemed to involve making Skype, not star-shaped speaker phones, the centerpiece of the conference room experience.

At Ignite, Avanade, the consultancy detailing the M&S deployment, said the company anticipates the remaining 2,500 employees to be on Phone System by the end of this year. Assuming the project is on track, all 7,000 office workers should be off Mitel systems and on Phone System now. Will they get the full set of call features the previous PBX could provide? Certainly not.

But is that an issue for M&S and other large enterprises examining the Phone System option in Skype for Business Online and now Teams? For some, at least, the answer is clearly the same: "Certainly not."


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