| [SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] access management access points security vulnerabilities accounting CDRs 2nd adding new features to VoIP deployment advanced call routing analog telephones analyzing ROI 2nd analyzing ROI benefits of VoIP convergence 2nd cost savings 2nd 3rd 4th 5th 6th 7th hard benefits new features 2nd 3rd 4th 5th productivity savings 2nd soft benefits obstacles to VoIP deployment 2nd 3rd business risks 2nd Andress, Mandy annoyances 2nd application integration application management applications transaction-oriented assembling VoIP deployment test plan 2nd 3rd assessing reliability 2nd 3rd of hardware 2nd of IT processes 2nd of link and carrier of network design 2nd of software assessing VoIP readiness ATM QoS 2nd attack signatures attacks annoyances 2nd call hijacking detecting 2nd DoS 2nd preventing 2nd reacting to 2nd authentication authorization AV (antivirus) detection tools availability [See also reliability] downtime costs 2nd fault management 2nd 3rd five nines high availability, maintaining 2nd application management monitoring servers 2nd 3rd 4th SLA metric 2nd |