ConfBridge

ConfBridge is the newer conference-room engine in Asterisk, the phone software at the heart of VICIdial. Like any conference bridge, its job is to put several callers into one shared audio space so everyone hears everyone. ConfBridge was built to replace the older MeetMe, and it does the same core job in a cleaner, more flexible way. If MeetMe was the first-generation answer to "how do I get three people on one call," ConfBridge is the modern rewrite that learned from the rough edges.

The biggest practical difference is hardware. The older MeetMe conference engine needed a special timing source on the server, which was fussy on virtual machines and cloud servers and often required extra setup just to work at all. ConfBridge does not. It handles its own timing in software, which makes it a much better fit for a modern VICIdial box running on a VPS or cloud host. That alone is why so many setups have moved over, since it removes a whole class of "why is there no audio" problems.

What it enables

Because ConfBridge can hold many Channel legs in one room, it powers the features agents use every day. A Three-way call is just a third party joining the room. A Warm transfer works by adding the new agent before the first one leaves, so the caller never sits in silence. And Call recording can capture the whole room at once, which keeps both sides of the conversation in a single clean file rather than two halves you have to stitch together later.

For most operators, ConfBridge is invisible. You configure it once through Asterisk settings and then forget it. The reason to know the name is troubleshooting: if conference audio breaks or transfers fail, knowing whether your system uses MeetMe or ConfBridge tells you which config file and which logs to read first, and that single piece of knowledge can turn an afternoon of guessing into a ten-minute fix.