Programmable Voice API & Cloud CCaaS

Name: SIP.IO
Brand: SIP.IO

Programmable Voice · CCaaS

Programmable voice & cloud contact center - on the global edge.

SIP.IO unifies a programmable voice API and a full cloud contact center (CCaaS) in one edge‑native, globally Anycast platform. Built for developers shipping voice apps and for Voice AI agents that need a real phone number and a clean handoff to a human agent.

SIP.IO gives software full control over phone calls - playing audio, running multi‑level IVRs, collecting input, recording and routing to agents, AI or queues - all via HTTP and SDKs, with no telephony hardware and no renting someone else’s network. Call flows are defined as low‑latency JSON graphs that execute at the edge, and can also be edited visually.

Beyond the API, SIP.IO includes a full cloud contact center (CCaaS) - skills‑based ACD queues, agent presence, multiple outbound dialing modes (preview, progressive, power, predictive), a real‑time supervisor wallboard and KPI reporting - so Voice AI agents can hand off to a human agent with full context, with no need for the caller to repeat themselves.

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Key capabilities

Global edge infrastructure

Anycast network that runs calls at the edge closest to the caller, for low latency and TLS/SRTP security by default.

Programmable voice API

IVR, recording, routing and call flows as JSON graphs - via HTTP and SDKs, with speech prompts in 16 languages.

Full CCaaS contact center

Skills‑based ACD queues, an outbound dialer, a real‑time wallboard and KPI reporting - with no per‑seat licenses.

Voice‑AI ready

Media streaming for STT/LLM/TTS stacks and an OpenAI‑API‑compatible interface, with seamless human handoff.

Ideal for

Developers building voice apps - IVRs, outbound calling, notifications and click‑to‑call
Voice AI agents that need a real phone number and a context‑rich handoff to a human
Sales and support teams that want ACD, dialing and a wallboard with no per‑seat licenses
Companies replacing Twilio, Genesys, Five9 or Amazon Connect with usage‑based pricing

Why through Reshetcall?

The sole representative in Israel - a direct line to the vendor, no middlemen.

Deployment, CRM integration and project management - end to end.

Support in Hebrew and your time zone.

One vendor, one bill - for your entire voice stack.

Frequently asked questions

How is SIP.IO priced? +

Purely usage‑based - per‑minute voice and per number, with no per‑seat licenses, no minimums and no multi‑year contract.

Does it replace an existing PBX or contact center? +

Yes - SIP.IO includes both a programmable voice API for building applications and a full CCaaS contact center with queues, dialing and reporting.

How does it work with Voice AI agents? +

The platform gives the AI agent a real phone number, streams media to any STT/LLM/TTS stack, and hands calls off to a human agent with full context when needed.

All products

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