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GuideVoIPPDF · 3.7 MB
Business Phone System Security Guide
Secure your VoIP phone system against toll fraud, eavesdropping, and SIP attacks — configuration hardening, encryption, and monitoring best practices.
About This Resource
VoIP phone systems are a frequent target for cybercriminals — toll fraud alone costs UK businesses millions annually. This security guide covers the essential steps to protect your business phone system from the most common attack vectors. From SIP trunk hardening and SRTP encryption to toll fraud prevention and call monitoring, it provides practical, actionable security measures that any IT team can implement to keep business communications secure.
What's Included
- SIP security hardening covering authentication, TLS encryption, and access control lists
- SRTP encryption configuration to protect voice media from eavesdropping
- Toll fraud prevention including international call barring, rate limiting, and alerting
- Firewall and SBC configuration best practices for VoIP traffic protection
- User security awareness covering social engineering and voicemail hacking risks
- Monitoring and alerting setup for detecting suspicious calling patterns
Who Is This For?
IT managers, security teams, and business owners who need to secure their VoIP phone system against toll fraud, eavesdropping, and other telephony-specific cyber threats.