Price is calculated based on a per user (person), per month and can vary depending on your specific requirements. A one-off platform installation fee and per-user set-up fee applies. Per user, per month bundled costs for Private Cloud decrease at +350, +500 and +1,000 users. A 12 or 24 month term applies. In order to get Voice for Skype for Business you need an internet or WAN connection, Microsoft licensing and a Public Unified Communication Certificate. Spark terms and conditions apply.