NovaSynth by Noveum

Test your voice agent on the callers you can’t stage.

Visit WebsiteShare

NovaSynth lets you simulate realistic callers at scale. You can set custom personas, scenarios, interruptions, background noise, accents, and even network conditions. It then runs those calls against your voice agent, scoring both audio and transcripts across more than 30 different dimensions. After the test, it surfaces the failures and suggests fixes that your team actually cares about. So you can see exactly where your voice agent struggles and improve it before your real customers call.