The SIP Calls report tracks threats over a specified time period. See SIP calls blocked due to a multitude of typical problems:
- SIP parse errors
- Failed Authentication
- Accounting challenges
- Security features such as TDoS and DoS
- Exceeding Invite rate thresholds
- Failed SIP calls with 4xx, 5xx and 6xx class SIP failure responses
- Calls from Blacklisted sources
- Calls denied due to missing policy
Ideally these reports come back with no entries, but in typical deployments a certain normal level can be expected. Use Thresholds to alert if normal levels are exceeded.
