URL details: www.soymariogutierrez.com/post/secure-sip---rtp-with-asterisk-and-let-s-encrypt

URL title: Secure SIP / RTP with Asterisk and Let’s Encrypt.
URL description: At VoIP Telecom Argentina we provide connected phone solutions for our customers. We use services like Twilio, Skype, Google, but in some cases, we need to customize our infrastructure and use good old bare metal asterisk server to answer our customers needs. Many years ago, when you used SIP and RTP (the protocol for the voice data), you could just “forget” to implement encryption. In many use cases, you used it inside some private networks, and it wasn’t gonna be a problem (at least a manageab
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