Configure Busy Lamp Field hints so desk phones show real-time extension status. Covers hint syntax, PJSIP device state subscriptions, and mapping BLF ...
Pick up ringing calls by group using *8 or by targeting a specific extension with **XXXX. Configures named_call_group and named_pickup_group on PJSIP ...
Configure fail2ban jails and filters to block SIP brute-force and scanning attacks on Asterisk. Includes custom regex filters for PJSIP auth failures ...
Monitor SIP trunk registration status and send alerts only on state changes, avoiding alert fatigue from repeated notifications when the trunk remains...
Check PJSIP endpoint registration status and send alerts via Slack or email when phones or trunks go offline. Handles flapping detection to suppress r...
Enable SIP debug traces on the Asterisk CLI to troubleshoot registration failures, call setup problems, and authentication issues -- with annotated RE...