VICIdial Remote Agent Setup: NAT Traversal, WebRTC, and SIP Configuration

Remote work is no longer optional for call centers. Whether you are scaling into new geographies, hiring from a broader talent pool, or maintaining business continuity, your VICIdial deployment needs to handle agents who are not sitting on the same LAN as your Asterisk server. The challenge is that VoIP was designed for local networks, and the moment you introduce NAT, consumer firewalls, and variable internet connections, things break in ways that are difficult to diagnose. This guide walks through every layer of remote agent configuration in VICIdial: choosing between SIP and WebRTC, solving NAT traversal, tuning Asterisk, locking down security, and optimizing audio quality for agents working from home. SIP vs. WebRTC for Remote Agents Before touching any configuration, you need to decide how remote agents will connect their audio. There are two paths, and each has real trade-offs. Traditional SIP Softphones With SIP, agents install a softphone application (Zoiper, MicroSIP, Linphone