VOS3000 illegal call recording captures CDRs for unauthorized IP hack attempts. Learn how SERVER_BILLING_RECORD_ILLEGAL_CALL creates security audit trails and differs from normal billing records.
SIP ALG Problems: Complete Troubleshooting Guide for VoIP NAT Issues
Solve SIP ALG problems causing VoIP NAT issues. Complete guide to disable SIP ALG on routers, fix one-way audio, registration failures, and NAT traversal.