The System Status Application (SSA) is a diagnostic tool for IP Office that provides real-time monitoring of system performance (Option B). It displays metrics like trunk usage, extension status, and alarms, aiding troubleshooting. Option A (configure settings) is handled by IP Office Manager, Option C (voicemail greetings) by Voicemail Pro, and Option D (call control) by tools like one-X Portal or SoftConsole.
References: Avaya IP Office System Status Application Guide.

The one-X Portal (Option B) provides a web-based interface where users can see the presence status (e.g., available, busy) of other IP Office users, enhancing collaboration. Option A (SoftConsole) is for call handling, Option C (Voicemail Pro) is for voicemail, and Option D (System Status) is for system monitoring-not user presence.References: Avaya IP Office one-X Portal User Guide.

Phone Lock (Option B) allows a user to secure their phone with a PIN, preventing unauthorized use. Option A is for logging into phones, Option C restricts outbound calls, and Option D links to external numbers-none lock the phone itself.References: Avaya IP Office Phone User Guide.