# Contact-centre voice AI: compare vendors

There are 5 contact-centre voice AI vendors in the index.

5 voice AI vendors. Also on the [web page](https://voiceagents.fyi/de/global/online/category/contact-center-voice-ai).

## Voice AI vendors

1. [NiCE Cognigy](https://voiceagents.fyi/de/global/online/nice-cognigy.md), Contact-centre voice AI, Online: Enterprise customer service AI platform for generative and conversational AI agents across voice and chat; part of NiCE.
2. [Synthflow](https://voiceagents.fyi/de/global/online/synthflow.md), Voice agent platforms, Online: End-to-end voice AI platform for enterprise call automation, deploying custom low-latency AI agents for sales and support.
3. [telli](https://voiceagents.fyi/de/global/online/telli.md), Outbound and sales calling, Online: AI agent platform for customer experience that handles phone conversations and the follow-up work.
4. [VIER](https://voiceagents.fyi/de/global/online/vier.md), Contact-centre voice AI, Online: German AI provider with VIER Cognitive Voice Gateway for telephony voicebots; GDPR-compliant German cloud.
5. [Parloa](https://voiceagents.fyi/de/global/online/parloa.md), Contact-centre voice AI, Online: Parloa is the AI agent management platform for enterprise CX. Build, test, and scale voice and chat AI agents that turn conversations into loyalty.

## Other categories in Online

- [Voice agent platforms](https://voiceagents.fyi/de/global/online/category/voice-agent-platforms.md): 2 voice AI vendors
- [AI receptionists](https://voiceagents.fyi/de/global/online/category/ai-receptionists.md): 1 voice AI vendor
- [Outbound and sales calling](https://voiceagents.fyi/de/global/online/category/outbound-sales-calling.md): 1 voice AI vendor