A working agent on your own stack in 2-3 weeks, from $6,400. Any call volume.
If Vapi or Retell AI is costing more than it saves, the fix isn't another platform. It's owning the three pieces you currently rent: the media path, the transcripts, and the model calls. We rebuild your agent on LiveKit and SIP, keep the prompts and the call flows you already tuned, and hand you the repo.
The platform charges per minute for work your servers could do. At a few thousand calls a month the gap is small. Past that it's the line item your CFO circles.
The answer was "in their logs," and that ended the conversation. Transcripts are your data, and in a regulated product they can't sit in a vendor's account.
A price change at your STT vendor, or accuracy that falls apart on noisy telephony audio, shouldn't turn into a three-month project.
We can help with both. Move to another platform and optimize your voice stack, or build your own solution with full control over the infrastructure, data, and code.
A migration off a managed platform is mostly calendar time and one round of re-tuning. Here is where each of the six goes wrong.
A managed platform charges per minute for the media path, the model call, and the orchestration as one bundled rate. On your own stack you pay the carrier and the model separately, and the orchestration is code you already own. That's the whole arithmetic. The break point isn't a secret, it's a number you can compute from last month's invoice.
There’s no one-size-fits-all stack. We can optimize a managed platform, help you move to another provider, or build your own infrastructure. We’ll help you choose the approach that fits your product, volume, and requirements.
Pick the one that matches where the build is now. The engagement model is underneath the pricing.
Build a production-ready AI agent from your requirements, integrations, and workflows.
Migrate from Vapi, Retell, or another platform to your own optimized voice stack.
Take over an existing project, fix technical issues, and get a stalled or underperforming build back on track.
Embedded teamAdd our engineers to your team for ongoing development, support, and technical ownership.
Three scopes. The middle one is what most teams leaving a platform actually need.
How most of our clients work
When you need one number signed off

Tell us what you want to launch and who it's for. You get back the scope split into what ships first and what waits, the stack we'd pick with the reasoning, and the questions that decide the budget.
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Inherited a codebase nobody can explain? We read it and tell you three things: what's worth keeping, what fails under real load, and what a security or compliance review would catch.
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Send us how your product works today: what carries the media, where the data lands, and what you've already built. You get back the architecture we'd build instead, what it costs to run at your volume, and which parts you shouldn't build at all.
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It works on your machine and falls apart for real users. We put your product through the conditions that break it — weak networks, more people than the demo had, the session that has to be recorded — and hand you each failure with the place in the stack that caused it.
Get it free →Four claims, each with a named system behind it.
We built Nucleus, an on-premise communication platform whose AI phone agents run at that volume for 5,000+ businesses, under SOC II, GDPR and HIPAA.
TransLinguist runs on the NHS UK national framework with 75+ languages and 30,000+ interpreters.
Video, real-time and AI, with 50 in-house engineers.
The repo, the data and the phone numbers are yours on day one, not at the end.
What moves, what breaks, what it costs, who owns it.
Ask an engineerYes: your own stack. LiveKit or SIP carries the call, your database holds the transcripts, and the model call goes straight to the provider. Prompts and call flows move across as they are.
Prompts, call flows, phone numbers and recordings. What doesn't move is behaviour: turn handling and barge-in get tuned again on your own audio.
It depends on where you host. What you gain is the ability to tune it at all: turn detection, endpointing, barge-in and provider choice are yours. On a managed platform you tune what they expose.
A pilot move starts at $6,400 and takes 2-3 weeks. A full agent on your stack starts at $12,800 and takes 4-6 weeks.
Under a few thousand calls a month, or when nobody on the team will own the infrastructure.
Yes. Porting is the slow step, and it's calendar time at the carrier, not work on our side.
No. Your cloud is the common case; on-premise is for regulated products, and we've shipped that too.
You do. You get the repo, and the handover is part of the project, not an upsell.
That's step five, and we don't skip it. The same calls hit both stacks so the comparison is real rather than argued.
We start by clarifying your requirements and defining the scope together. From there, we agree on the engagement and pricing structure that fits your project.
Build beyond the limits of off-the-shelf voice platforms — with AI agents, custom integrations, and production-ready voice infrastructure.
See how we turn real-time communication and AI into production software for real businesses.
Practical guides to voice AI platforms, custom development, costs, and the decisions behind the stack.
You get back the per-minute arithmetic on your own numbers, a migration order for your flows, and a straight answer on whether to stay. Yours to keep either way.