Delivered a fully white-labelled AI voice agent platform an agency could sell under its own brand

The problem

An AI services agency wanted to add AI phone agents to its offering — 24/7 inbound answering, outbound reminder and follow-up campaigns, and appointment booking mid-call — but did not want to expose the underlying vendors, stitch together telephony, voice synthesis and LLM providers itself, or run a separate dashboard per client.

They needed one platform where they could create an agent for each end-client, connect the client's existing phone numbers, push call outcomes into whatever CRM that client already used, and see usage, cost and margin per client in one place. They also needed a way to sell it: a branded site, a pricing calculator and a live agent prospects could phone before signing.

What it cost

Every client conversation about voice AI ended in a custom quote and a bespoke build, which does not scale. Without per-client cost visibility the agency could not price packages with confidence, and without a demo agent, prospects had to take the pitch on faith.

What we built

A white-label AI voice agent platform on Retell AI infrastructure, delivered in roughly one and a half weeks. Core capabilities: instant 24/7 answering, natural turn-taking with interruption handling, premium ElevenLabs voices, production-quality English, Arabic, Spanish and French with 30+ languages on request, lead qualification and scoring, warm and cold transfers, and word-for-word transcripts with AI summaries of intent, outcome and sentiment.

Automated actions include live calendar booking and rescheduling across Google, Calendly and Outlook, outbound dialing with voicemail detection and callbacks, campaign triggers fired within seconds of a web-form lead, emergency phrase escalation, and consistent context across voice, SMS and WhatsApp. Calls sync to HubSpot, GoHighLevel or Salesforce, existing numbers connect via Twilio, Telnyx or SIP, and a website voice-chat widget covers visitors who would rather not call. The agency side is a multi-tenant admin command centre with real-time usage, per-client cost and profit margin, a package creator and calculator, a furnished branded platform website, and a live demo agent.

What changed

The agency now operates as a branded AI voice provider, able to onboard, manage and support end-clients entirely under its own identity. Call volume and client onboarding figures are still to be collected.