Cognigy and Omnia both run voice agents. Omnia also tests them as phone calls.
Omnia tests a release the way a caller hears it, then moves calls to it in steps without dropping the ones in progress. Cognigy’s simulator speaks text only, and restoring an earlier snapshot ends the calls already running.
The new version was answering a fraction of calls when its metrics dropped, and Omnia sent new calls back to the previous one. Callers already mid-conversation finished on the version they started with. docs
Restoring a snapshot overwrites the agent’s resources, and conversations in progress stop working because the flows are deleted. their docs
At a glance
| Topic | Omnia | Cognigy, per its docs |
|---|---|---|
| Simulated users | yes Multi-turn, against real tools. docs | partly LLM personas, text only. source |
| Adversarial simulated users | yes Yes. docs | not documented Not documented. source |
| Voice simulation | yes Barge-in, overlap, dead air, recorded. docs | not documented Not supported. source |
| Stepped rollout, auto rollback | yes Yes. docs | not documented Not documented. source |
| Tool policy | yes A CEL rule on every call’s arguments. docs enterprise | partly Per-tool conditions and MCP tool filters. source |
| End-user identity to tools | yes Carried to every call. docs | not documented Not documented. source |
| Agent traces over OpenTelemetry | yes Yes. docs | partly Voice Gateway call events only. source |
Common questions
- Does Omnia handle realtime voice?
- Yes. Duplex voice with interruption handling runs in the runtime, alongside a transcribe-think-speak pipeline when you want one.
- How is Omnia priced?
- Free while you build, the core free in production, and an enterprise licencelicense per environment per year from £30,000. Nothing is metered per conversation or per line.
Put your own agent through the gate.
Install Omnia in your cluster and run it free while you build.
Cognigy claims are from NiCE’s published documentation, checked 22 October 2026. Spot something out of date? Tell us.