Parallel mode

Last updated 4 September 2026

Parallel mode rings several people at once. The first to answer is put through to you. The others are ended and kept in the list. This guide covers how it works, choosing lines, auto tuning, and what dropped prospects hear.

How it works

Your browser joins a conference line before any prospect is dialled. Redialler then rings two or more people at the same time. The first to answer is joined to your line straight away. The other calls are cancelled.

Because your line is already open, there is no delay while your browser is dialled after someone answers. That delay is what makes other parallel diallers sound like a robocall.

The pre-joined line

You hear a soft tone when a round starts and a second tone when someone connects. Between rounds you are on hold, not on a call. Press Enter to start the next round or H to leave the session.

Choosing lines

Lines is the number of people rung at once. Start with two. Move to three when most calls go to voicemail. Go higher only for lists with very low answer rates.

More lines means more chance that two people answer at once. The second person is dropped and rung again later. Keep this rare.

Auto tuning

With auto tuning on, Redialler lowers the number of lines when two people answer close together and raises it again when rounds go unanswered. The limit you set is the ceiling. Auto tuning never goes above it.

What dropped prospects hear

A person who answers second hears the call end within about a second. No message, no silence. They are logged as an attempt, not a conversation, and stay in the list for the next round.

If they call back, the inbound routing sends them to a free rep. See Inbound callbacks.

Still stuck? Email hello@redialler.com.