VoipOneClick is an open source application to make FREE ENCRYPTED VOIP calls.
It does use the TLS protocol to encrypt the signals communication (caller id /called id for example), and the SRTP protocol to encrypt the audio communication.

The iPhone 17 Pro Camera Deep Dive: How 48MP Everything and 8x Zoom Actually Change Mobile Photography
After years of incremental camera updates that only mattered to pixel peepers, the iPhone 17 Pro’s camera system represents a