sipgate flow

What it does

Done-for-you service

NoThis is software you integrate yourself: sipgate supplies the voice layer while you write and host the conversation logic, with no build or run service offered.It handles the telephony, speech-to-text, and text-to-speech, so you keep full control over your conversation logic and your choice of LLMflow.sipgate.io/faq.html ↗

How much it does unattended

Runs autonomously

PartlyFlow runs a whole call unattended (greeting, transcription, speech, transfer, hangup), but every decision comes from your application, so autonomy depends on the logic you supply.Your application owns the conversation logic and can call any LLM you choose.flow.sipgate.io/faq.html ↗

Multi-agent

PartlyOne flow owns a call; coordination between agents happens by transferring the call with context passing rather than by any orchestration framework.SSML für Feintuning, Weiterleitungen mit Context-Passing, Warm Handover geht alles über simple JSON-Befehle.sipgate.de/flow ↗

Agent permissions

PartlyInbound handling is open once a webhook is configured, but outbound dialling is withheld until sipgate support reviews the account, which is a real gate on what the agent may initiate.Outbound calls are only available upon request and after a positive review by sipgate support. This restriction exists to prevent fraud and spam.flow.sipgate.io/api/guides/outbound-cal… ↗

Which models it runs on

Claude

YesClaude is named as a model you integrate behind the voice layer; sipgate does not resell it, your own application makes the call.When integrating Large Language Models (LLMs) like OpenAI's GPT, Anthropic's Claude, or similar services with sipgate flowflow.sipgate.io/api/guides/streaming-ll… ↗

GPT

YesGPT is named in the streaming guide as a model you wire behind the webhook; inference is yours to arrange and pay for.When integrating Large Language Models (LLMs) like OpenAI's GPT, Anthropic's Claude, or similar services with sipgate flowflow.sipgate.io/api/guides/streaming-ll… ↗

Open models

PartlyNothing stops an open-weight model being used because the LLM lives in your application, but the vendor never names one or hosts any model itself.Your application owns the conversation logic and can call any LLM you choose.flow.sipgate.io/faq.html ↗

Model choice

YesModel choice is entirely the buyer's: flow carries audio and text only, and states plainly that you keep your choice of LLM.so you keep full control over your conversation logic and your choice of LLM — sipgate flow gives your existing AI a voice on the phoneflow.sipgate.io ↗

Where you use it

On the command line

NoThe docs enumerate every integration path (HTTP webhook, WebSocket, TypeScript SDK) and none of them is a terminal tool.HTTP webhooks for serverless, WebSocket for real-time, or use our TypeScript SDK for convenience.flow.sipgate.io ↗

In a browser

YesA hosted Flow dashboard exists for configuration (webhook URL, WebSocket URL and shared secret), though the docs never show it as a build or monitoring console.Configure: Add your webhook URL in the Flow dashboardflow.sipgate.io/api/quick-start.html ↗

Whose machine it runs on

Self-hosted

PartlyYour half (webhook server and LLM) runs anywhere you like, but the telephony, transcription and speech synthesis run on sipgate's own EU infrastructure with no self-hosted option documented.sipgate flow runs on EU infrastructure operated by sipgate in Germany, is ISO 27001-certified, and is built to meet GDPR and EU AI Act requirementsflow.sipgate.io/faq.html ↗

Open source

PartlyOnly the client is open: the first-party TypeScript SDK is published under Apache-2.0, while the voice and telephony service behind it is closed and hosted.License: Apache-2.0npmjs.com/package/@sipgate/ai-flow-sdk ↗

What it costs to run

How it meters

YesBilling is per talk minute: four prepaid minute packages, each with a published per-extra-minute rate and no base fee, cancellable monthly.Small 2.500 Minuten 249,95 € 9,9 ctsipgate.de/flow ↗

Free tier

NoThe published package table is a closed list of four paid tiers starting at 249,95 €; no free or trial Flow tier appears anywhere on it.Paket Inkludierte Minuten Paketpreis Jede weitere Minute in EUR Small 2.500 Minuten 249,95 € 9,9 ctsipgate.de/flow ↗

API access

YesThe product is nothing but an API: plain JSON events over HTTP webhooks or WebSocket, plus a REST endpoint to place outbound calls, usable from any language.The API uses plain JSON over HTTP webhooks or WebSocket, with examples in Python, Node.js, Go, and Ruby.flow.sipgate.io/faq.html ↗

Bring your own key

PartlyInference is bring-your-own by design (your keys, your provider, your bill), while speech synthesis and transcription run through providers sipgate operates rather than accounts you supply.Your application owns the conversation logic and can call any LLM you choose.flow.sipgate.io/faq.html ↗

Not established: MCP server

Buying it for a team

A company can buy it

YesSold business-to-business by a German telco, with minute packages priced net of VAT and an explicitly multi-tenant offer for resellers.Sie wollen Ihren Kunden Voice-Funktionen anbieten? Flow ist der richtige Telefoniepartner dafür. Multi-Tenant-fähig, skalierbar und ganz einfach…sipgate.de/flow ↗

Seat model

NoThere are no seats and no per-user floor: the rate card meters talk minutes only, with no base fee and monthly cancellation.ohne Grundgebühr • minutengenaue Abrechnung • monatlich kündbarsipgate.de/flow ↗

Pooled budget

YesOne account-level minute allowance covers every call and every flow; minutes are billed to the second, with overage at the package's published rate.Medium 10.000 Minuten 899,95 € 8,9 ctsipgate.de/flow ↗

Admin controls

PartlyThe sipgate account separates admin from restricted users, which governs configuration rights, not a policy engine limiting what the agent may do mid-call.Die sipgate Dienste ermöglichen es, eingerichtete Benutzer:innen zwischen Admin-Usern mit weitreichenden Rechten und normalen Usern mit…sipgate.de/sicherheit-datenschutz ↗

Single sign-on

PartlyCustomers who already run an SSO provider can enforce SSO login for all their users; Google and Apple sign-in is open to everyone, and neither SAML nor OIDC is named.Kund:innen, die einen SSO-Anbieter nutzen, können die SSO-basierte Anmeldung für alle ihre User einrichten.sipgate.de/sicherheit-datenschutz ↗

Not established: Audit log

What happens to your code

Opt out of training

PartlyUnder AI Security sipgate states model training on customer data is contractually excluded and processing stays in Europe, but the sentence covers its own ChatGPT usage, not Flow's speech subprocessors specifically.Eine weitere Nutzung der Daten, zum Beispiel für Machine Learning durch OpenAI, ist vertraglich ausgeschlossen.sipgate.de/sicherheit-datenschutz ↗

Data residency

YesProcessing is stated to sit on EU infrastructure operated by sipgate in Germany, positioned explicitly as the alternative to US-hosted voice AI providers.sipgate flow runs on EU infrastructure operated by sipgate in Germany, is ISO 27001-certified, and is built to meet GDPR and EU AI Act requirementsflow.sipgate.io/faq.html ↗

Getting out

PartlyDeletion is documented and self-service under the data-processing agreement, but no data-export path is published and nothing states whether unused package minutes roll over.Werden Daten im Auftrag der Kund:innen gespeichert, greifen die Regelungen des Vertrags zur Verarbeitung von Daten im Auftrag. In diesen Fällen…sipgate.de/sicherheit-datenschutz ↗

Certifications

YesISO 27001 certification is claimed alongside GDPR and EU AI Act readiness, though SOC 2 is never mentioned and no certificate or audit report is linked from the site.is ISO 27001-certified, and is built to meet GDPR and EU AI Act requirements — a key difference from US-based voice AI providersflow.sipgate.io/faq.html ↗