Currently a customer has an IP500 V2 Preferred Edition deployment with SIP trunks at their office, but they plan to have 10 employees for tech support to work remotely within the next month. All 10 employees must be able to access their extension simultaneously. They ask you If the IP Office has built-in functionality for this and whether that Is sufficient from a security perspective.
Which solution would satisfy the customer's need for remote employees and security, and which additional licensing (if any) is required?