Simple Voice Chat Integration

No. Bedrock Voice Chat does not integrate with Simple Voice Chat. They are separate systems and players on one cannot hear players on the other.

BVC does, however, cover both sides itself: install the BVC Fabric or PaperMC mod on your Java server and your Java and Bedrock players will hear each other through the BVC apps — including Bedrock players connected via Geyser.

The tradeoff is that every player needs the BVC app, where Simple Voice Chat is built into the Java client. BVC's app is what makes cross-platform and console support possible.