Working remotely with the web client

The zero-install remote option: because the web client makes calls with WebRTC in the browser, anyone who can reach the system's HTTPS address (https://your-fqdn, or https://your-fqdn:5001 for an installation using port 5001) has their full extension — calls, chat, voicemail, presence — from any machine, anywhere. No VPN, no client software, no per-user setup.

What works from anywhere

Everything the office web client does: making and receiving calls, hold/transfer/conference, the Team view and Panel, chat and SMS, voicemail and recordings. Calls ring the browser tab alongside the user's other registered devices; the browser must stay open to stay reachable.

How the audio gets through

Browsers behind home NAT can't receive media directly, so the system's built-in TURN relay carries call audio between the browser and the PBX. It was configured during installation — the TURN ports (3478 and the 16485-16584 relay range, the top half of the forwarded media block) must be open on your firewall for remote browser calling to work. Credentials are time-limited and minted per session; there's nothing to manage.

Requirements

• A valid HTTPS certificate on your FQDN (browsers refuse microphone access on insecure origins) — automatic if you chose ACME certificates at install.
• A current browser — Chrome, Edge or Firefox.
• Microphone permission — granted per browser on first call.

Emergency-calling caveat

A remote user dialing 911 through the web client presents the office's registered address to emergency services — see emergency calling for the policy implications.

Install it like an app

The web client can be installed straight from the browser — look for the install icon in the address bar — and then opens in its own window with its own icon, on desktop and mobile. There is nothing to keep updated; it is still the web client, just without the browser chrome.

When you need a desk phone instead

The web client covers any browser; the Exovo app for Windows gives frequent callers a dedicated desktop softphone over the same secure tunnel the SBC uses — global hotkeys, HID headset controls and a BLF key strip included. Physical phones at remote locations use the per-phone VPN or a site SBC. The Android app carrying the same extension is in field testing on the same foundation as the Windows app, with iOS to follow.