--- title: "Voice AI Agents on Real Phone Numbers — KrosAI" description: "Connect your AI agent (Vapi, Retell, ElevenLabs, LiveKit or custom) to KrosAI's local numbers. Inbound, outbound, campaigns, playground." url: "https://krosai.com/product/voice-ai-agents" updated_at: "2026-05-24" --- # Voice AI Agents on Real Phone Numbers — KrosAI > Connect your AI agent (Vapi, Retell, ElevenLabs, LiveKit or custom) to KrosAI's local numbers. Inbound, outbound, campaigns, playground. Your AI, on a real phone line. Stream calls to any voice AI platform with sub-20ms network latency. Inbound, outbound and campaign workflows out of the box. ## Bring your own agent KrosAI is agent-agnostic. Connect Vapi, Retell, ElevenLabs, LiveKit, Vogent — or your own webhook. Your AI stack stays where it is. - Native integrations with major voice AI platforms - Custom webhook for fully bespoke agents - Switch providers without changing your phone numbers ## Built for local accents Optimized for the languages and accents your callers actually speak — including English variants, Pidgin, Swahili, Arabic, Yoruba and more. ## Playground for fast iteration Test prompts, voices and tools before you point a number at them. Talk to your agent in the browser, tweak, deploy. - In-browser voice testing - Prompt versioning - Side-by-side voice comparison ## Inbound, outbound and campaigns Route inbound calls to agents, fire outbound calls from the API, or run multi-step campaigns with retries and quiet hours. Talk to your agent on a real number. Spin up a free playground agent, then point a local number at it when you're ready.