Finally, here is the last part of the series and I hope the most insightful one.
The following diagram depicts the server architecture to support up-to 50,000 subscribers for a UC offering, it considers redundancy & high availability for all the server components of the solution:
This architecture is based on the following assumptions:
As a partner, you need to consider a ramp-up period to reach such scale of subscribers, the following section outlines the HW configurations needed to scale up-to 50k subscribers, beyond this volume, the architecture would have to be revised.
As part of the infrastructure readiness needed to support UC services, the following has to be considered as well:
The following table consolidates an estimated monthly Software cost*, to deliver UC capabilities based on the volume of subscribers:
# to subscribers
Infrastructure SPLA Cost per month (in USD$)
* These are indicative figures; a SPLA Reseller should be approached to obtain the final quote. Please also note that these figures don’t include the incremental service cost per subscriber (e.g., Exchange, SharePoint, Lync).
Following you’ll have a summary view of the number of servers needed based on the volume of subscribers:
# of servers
Outer Firewall & Proxy
Exchange (CAS & HUB)
LWA (Lync Web Access)
Collaboration server (WSS)
Collaboration server (Database)
In the section below you’ll find a breakdown view of the specific Hardware Profiles & Software being implemented for each configuration.
Hardware profile – 5k subscribers
Hardware profile – 10k subscribers
Hardware profile – 50k subscribers
The growth of the knowledge-based economy and the service sector, together with pressure on IT departments to streamline processes and create operational efficiencies, means that Unified Communications is rapidly gaining ground as organizations seek to reduce IT costs and boost employee productivity. Hosted UC provides a common communication structure for businesses, integrating features such as presence (real-time staff availability), instant messaging, VOIP telephony and email through a single software system, making it easier and more cost-effective for employees to collaborate. This represents an opportunity for Cloud providers to deliver such capabilities on a subscription-based model and provides more value to the end customer; Telcos become the best enablers of these scenarios, as Voice is already a service they do provide, but with UC they could extend such capabilities to the IP/PC world, and fully embrace the transformation towards an ICT provider.
Throughout this series, I’ve shared with you a summary of the MS offering and how it could be implemented. We are not done yet, this is just the beginning of the journey into UC cloud services. What matters now is how to drive sales and to recover this initial investment as fast as possible, with the right approach and vision towards Cloud, it should be an enjoyable & profitable journey.
Thanks for taking the time in following this series, I’ll share later on my views on how to GTM such services.