Knowledge Base
Security & Encryption
TLS, SRTP, ZRTP, privacy, permission handling.
2 answers · Part of 46 across the knowledge base
How do I enable encryption in Groundwire?
Enable encryption in Groundwire under Settings → SIP Accounts, where three layers are available: TLS for SIP signaling, SRTP for media, and ZRTP for end-to-end voice encryption. Your VoIP provider must support TLS and SRTP for those layers to work; ZRTP is negotiated directly between endpoints.
Is Groundwire secure?
Yes, Groundwire supports three layers of encryption: TLS for SIP signaling, SRTP for media (voice), and ZRTP for end-to-end call encryption. Together these help protect call setup, registration, and the audio stream.