Password Security with VOIP
Many companies have established call tracking for individual employees through the use of access numbers. VOIP allows for the use of access numbers that must be entered before a call is placed. You can also proactively manage VOIP access by maintaining a list of authorized users – much like you define access to private directories. If you are interested in VPN requirements, check with your VOIP service provider.
Issues to Consider Before Deploying VOIP