Usage statistics, such as the maximum number of concurrent calls during the busy hour.

Call data records (CDRs) for PSTN traffic usage.

Evaluate the following information, if available, for usage modeling: It also helps to indicate any future capacity planning requirements for Skype for Business. This data helps to validate any personas and usage models that you create.

What is the maximum/current available bandwidth for Skype for Business traffic per WAN link?ДЄ key ingredient in defining personas is to review the existing private branch exchanges (PBXs) or real-time communications system infrastructure capacity.

What sort of WAN technology/topology is deployed?.

How many users are at each site location?.

To begin the process of usage modeling, you should ask a number of general questions: In practice we typically see four to five unique personas. Another group of users may have no video usage scenarios at all. For example, a group of users may have 'Medium' PSTN calling patterns, but вЂњHighвЂќ video conference usage. For example, the usage model that is associated with public switched telephone network (PSTN) calling defines 'Medium' users, or users in the medium usage category, as having a maximum of 10 percent concurrent calls to PSTN at your organizationвЂ™s busiest time.ДЄ persona is a logical grouping of users based on the behavior that they exhibit when using a specific functionality. For instance, a peer-to-peer audio call or a video conference are examples of usage scenarios.ДЄ usage model represents a collection of data associated with specific users, which can help you customize and adapt a new system to your usersвЂ™ specific needs. Usage scenarios describe different ways that users communicate by using Skype for Business. The definition of a persona is the process of analyzing existing usage data, and then using this data to calculate the potential load on a new system. If you are running unmanaged switches, less than cat 5 cabling, less than 100Mb internal network, or firewalls that are not easily configurable, these items will likely need to be addresses before successful deployment. Some immediate takeaways that can be determined for this initial analysis would be in the area of equipment in use. Record this information for later use in determining network changes and optimization as determined by usage modeling, bandwidth and firewall configuration later in this document.

Define your Network Monitoring procedures.

Define all network hardware in use or planned for, including routers, switches, firewalls and cabling.Connectivity to the internet and ISP definition.How is that email connected to the network?.Define internet security and firewall/access list management.Is VPN being utilized across sites or internally?.Define the predominant transport protocol in use today.Obtain or design Network and Connectivity Diagrams showing all sites (including remote) and user counts, connectivity between sites, connectivity to the internet and associated bandwidth for all such connectivity.Describe the enterprise including user locations, site definitions and connectivity between sites.There are several pieces of information that you will want to gather to begin your assessment.ДЇirst, you should define the following about your current network: The best starting place in determining if your network is ready to support Skype for Business is with the network itself.

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