# Wixzel Phone

> Wixzel Phone is an API for building AI voice agents that place and answer real phone calls over your own SIP trunk. One API key and one prepaid balance cover every voice engine, billed per second of actual usage.

Wixzel Phone is APIs for agentic telephony: one API key, one balance, every voice engine; bring your own SIP trunk; billed per second of actual usage. Operated by Aqeel Shamsudheen, trading as Wixzel, India. Alpha, deployed. Content last updated 2026-09-08.

## Official facts
- [Facts](https://phone.wixzel.com/facts): operator, complete pricing, limits, refunds, data location, and what the product is not.
- [Pricing](https://phone.wixzel.com/pricing): per-minute prices generated from the price book, an estimator and a compose builder.
- [Model price list](https://phone.wixzel.com/models): every model, per unit and per minute.
- [Contact](https://phone.wixzel.com/contact): aqeel@wixzel.com

## Engines
- [classic](https://phone.wixzel.com/engines/classic): Deepgram + GPT-4o-mini + ElevenLabs, $0.0867 per connected minute.
- [sarvam](https://phone.wixzel.com/engines/sarvam): Sarvam, Indian languages end to end, $0.0623 per connected minute.
- [gemini-live](https://phone.wixzel.com/engines/gemini-live): Gemini Live, native audio, $0.0466 per connected minute.
- [deepgram-agent](https://phone.wixzel.com/engines/deepgram-agent): Deepgram Voice Agent, $0.1851 per connected minute.

## Solutions
- [Appointment booking](https://phone.wixzel.com/solutions/appointment-booking): Build an agent that answers the phone, checks availability and books an appointment, over your own SIP trunk, with the booking written back through the API.
- [Outbound lead qualification](https://phone.wixzel.com/solutions/outbound-lead-qualification): Upload leads, start a campaign, and have an agent call each one over your own SIP trunk, ask your qualifying questions, and record the outcome per lead.
- [Inbound support line](https://phone.wixzel.com/solutions/inbound-support-line): Answer a support number with an agent that reads from a knowledge base you upload, handles the common questions, and leaves a transcript of every call.
- [Indian languages](https://phone.wixzel.com/solutions/indian-languages): Run phone agents in Indian languages on models built for them, with the sarvam engine covering speech-to-text, the language model and text-to-speech end to end.

## Comparisons
- [Wixzel Phone vs Vapi](https://phone.wixzel.com/compare/vapi): Both are APIs for building phone-calling AI agents. They differ on who owns the provider accounts, who sells the telephony, and how far along each product is.
- [Wixzel Phone vs Retell AI](https://phone.wixzel.com/compare/retell-ai): Retell leans towards teams that want to design agents visually and deploy them at volume; Wixzel Phone is an HTTP API for developers who bring their own trunk.
- [Wixzel Phone vs Bland AI](https://phone.wixzel.com/compare/bland-ai): Bland runs its own models and voices as a single integrated stack; Wixzel Phone composes engines from named third-party models and lets you see and pick each one.
- [Best voice agent APIs for developers](https://phone.wixzel.com/best-voice-agent-apis): a roundup including the open-source options.

## Documentation
- [Docs](https://docs.phone.wixzel.com): guides and concepts.
- [API reference](https://docs.phone.wixzel.com/api-reference): every endpoint, from the OpenAPI document.
- [Docs llms.txt](https://docs.phone.wixzel.com/llms.txt)

## Legal
- [Terms](https://phone.wixzel.com/terms), [Privacy](https://phone.wixzel.com/privacy), [Acceptable use](https://phone.wixzel.com/acceptable-use), [Credits and refunds](https://phone.wixzel.com/refunds), [DPA](https://phone.wixzel.com/dpa)

## Full text
- [llms-full.txt](https://phone.wixzel.com/llms-full.txt)