Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Dhiraj,
Let me clarify the difference between Office 365 Enterprice E3 and E5.
You can refer to the links below to check if it helps:
https://products.office.com/en-us/business/compare-more-office-365-for-business-plans
https://technet.microsoft.com/en-us/library/office-365-plan-options.aspx
In short, E3 uses Exchange plan 1 and E5 uses Exchange plan 2. E5 includes all the features in E3 and add more features, such as Advanced Thread Protection, PSTN conferencing to facilitate Skype for Business meetings, and Cloud PBX services to give you cloud-based call management (placing, receiving and transferring calls on multiple devices).
Let me know if you have any other queries.
Thanks,
Lance