•2 possibilities over here to setup the VPN for your NEC SL1000 to support remote users;
•Get a local VPN service with local Telcos
–Advantage
•Single running cost
•Routers provided by telco
•Service Level Agreement (SLA) guaranteed, meaning voice quality is good
–Disadvantage
•Slight higher monthly recurring cost
•Setup the VPN yourself using VPN routers
–Advantage
•Only makes use of the customer existing internet connection
•Cheaper monthly recurring cost (paying only for the internet access)
–Disadvantage
•Need to configure the VPN router yourself
•No SLA guaranteed. Meaning voice quality sometimes good, other times bad
•VPN router will be part of your maintenance service
Setup NEC SL1000 Virtual Private Network (VPN) to support Remote Users (Gateway-to-Gateway, Client-Gateway)