The **Communicator GO** app turns your mobile into your office extension — make and take business calls, chat with the team, and check voicemail from anywhere, over WiFi or mobile data.

## Setting it up

Install **Communicator GO** from the App Store or Google Play, then sign in one of three ways:

1. **QR code (easiest):** scan the QR code from your welcome email, from the desktop Communicator app, or from your Self Care Portal. The email QR works once and asks you to set a new password.
2. **Manual:** enter your email address, password, and the server address from your welcome email.
3. **SSO:** tap SSO Login, enter the server, and sign in with your provider.

Allow the microphone and contacts permissions when prompted — it can't make calls without them.

## Good to know

- **Green call button** = call over data (normal). **Yellow button** = callback mode, handy when data is poor: the system rings your mobile and connects the call.
- **VPNs interfere with calling.** If calls won't connect and you run a VPN on your phone, disconnect the VPN and try again.
- Your **call history syncs** with your desk phone and desktop app.
- **Voicemail, chat (with attachments and voice messages), the company directory and favourites** are all built in.
- On mobile data, "Use SIP over mobile networks" is on by default — calls use a trivial amount of data.

## Troubleshooting quick hits

- **Can't sign in:** your login is the same as the desktop Communicator app. Not sure? Ask us or your admin.
- **Calls fail on WiFi:** try the yellow callback button, or check the VPN note above.
- **Poor call quality:** the in-call quality indicator (MOS score) helps us diagnose — screenshot it and [raise a ticket](https://jabblefish.ai/ticket/).