Essential InfoSec VoIP solutions offer robust security and high-quality communication features tailored for modern enterprises. Key features include end-to-end encryption to protect voice data from interception, secure SIP (Session Initiation Protocol) and firewall/NAT traversal support. They also offer intrusion detection and prevention systems (IDS/IPS) to guard against unauthorized access and denial-of-service (DoS) attacks. Multi-factor authentication (MFA) ensures only authorized users access the network. Scalability, high availability and compliance with industry standards like GDPR and HIPAA make these solutions reliable. Advanced call management, real-time monitoring and regular security updates further enhance overall VoIP infrastructure resilience and performance.