SintelSES / Integrations
Connect your existing systems.
Make speech and agent flows part of your application and telephony infrastructure.
Architecture \u0026 deployment
Run speech on your infrastructure.
Embed speech models in your application or connect through an API, telephony integration or local service. Generate speech and transcribe audio on the CPU, with no GPU required.
Embedded in your application
Load models inside your application with the SDK and run speech generation and recognition in the same process. Manage requests and audio streams from your application.
SDK · In-process execution
MRCPv2
Provide speech synthesis and recognition resources to telephony and IVR systems through MRCPv2. Examples of MRCPv2-capable platforms include FreeSWITCH and Asterisk through UniMRCP, Cisco CVP and Avaya Experience Portal.
SIP · MRCPv2 · RTP
Voice Agent
Combine speech recognition, a language model and speech generation in a saved flow. Manage sessions over HTTP or the Go gRPC SDK; run tools on the server or in your client.
STT · LLM · TTS
Local LLM
Collect details and guide tool calls with local language models such as Qwen. Run GGUF models on your own infrastructure.
Qwen · GGUF
gRPC
Use the native-free Go client for remote speech and saved Voice Agent flows over an authenticated TLS connection.
Go · TLS · Bearer
Unix socket
Run the speech service as a local daemon. Send requests over a Unix socket and receive paced PCM audio.
PCM · local IPC
OpenAI API
Use the documented TTS and ASR endpoints with OpenAI clients. See the API guide for supported audio formats.
HTTP · TTS · STT
SSML support
Control pauses, speaking speed and explicit reading rules with SSML. Supported tags and languages depend on the model.
break · prosody · say-as
Runs on the CPU
Speech generation and recognition require no GPU. Installed models run locally on the CPU; performance depends on the model and processor.
No GPU required
Speech inference runs on your server. Install model packages once, then process audio locally. Downloading models may require an internet connection.
Let’s discuss your call flow.
Let’s review your existing telephony and customer systems and prepare a demo around your use case.