VoIP documentation checklist

Documentation is an operational control. It should let another person understand the call path, make a safe change, identify ownership, and recover service during an incident.

Keep these records current

• Number inventory, E.164 format, ownership, and emergency location
• Dial plan, carrier routes, permissions, and failover rules
• SIP, RTP, DNS, VLAN, firewall, and QoS design
• PBX, SBC, recorder, provisioning, and monitoring dependencies
• Certificates, renewal owners, and trust anchors
• Endpoint models, firmware, templates, and replacement process
• Test cases, maintenance windows, incidents, and rollback procedures

Never store passwords or API keys in ordinary documentation. Link to the approved secret-management location and record ownership instead.

Related: migration planning, monitoring, and SBCs.