Phone registration

Phone registration is the handshake where an agent's softphone tells VICIdial "I'm here, and this is my address." The phone sends its login and password over sip (Session Initiation Protocol), and the server records which IP and port that phone is reachable at. Once registered, VICIdial knows where to push calls when the agent is dialing.

This matters because a phone that hasn't registered is invisible to the dialer. An agent can be logged into the web screen and still hear nothing, because the audio path runs through the phone, not the browser. If the registration drops, calls fail silently or land nowhere.

What can go wrong

• Wrong password — the phone keeps trying and never registers.
• A firewall or NAT router blocking the SIP port, so the server's reply never reaches the phone.
• A short registration expiry, so the phone has to re-announce itself often or it falls off.

Registration is the agent side. The other half is outbound: VICIdial connects to your carrier over a trunk to actually place calls. A remote agent working from home registers the same way, just over the internet instead of a local network. If you use a phone code override to point an agent at a different phone entry, that entry still needs its own valid registration to ring.