You have assign an office 365 plan to users that do not require a full Office client, but do support hosted voicemail.
What is the least cost plan you must assign ?
A.
Office 365 Medium Business
B.
Office 365 Enterprise E1
C.
Office 365 Enterprise E3
D.
Office 365 Enterprise E4
Explanation:
let me be helpful now instead of a madar chhod
https://technet.microsoft.com/en-us/library/office-365-voice-message-services.aspx
Hosted voice mail is available only to Exchange Online Plan 2, Office 365 Enterprise E3, or Office 365 Enterprise E4 subscribers.
The Automatic Speech Recognition (ASR) feature isn’t available in menu navigation or directory search for Outlook Voice Access users or auto attendant callers using voice commands.
The customer must provide a telephony connection from the public switched telephone network (PSTN) using a VoIP gateway and PBX, IP PBX, or Skype for Business Server 2015.
The customer must provide the on-premises SBC hardware devices and ensure that the SBCs are correctly configured to connect to the online voice mail services. This includes configuring the appropriate level of security by using certificates and public and private IP interfaces and by enabling the correct TCP ports through their on-premises firewalls.
Hosted voice mail is available only to Exchange Online Plan 2 and Office 365 Enterprise E3 subscribers.