Bridge live calls to any LLM in real time.
The Nexcadia AI Voice Gateway connects SIP/PSTN calls to OpenAI, ElevenLabs, NVIDIA, and any WebSocket-compatible AI voice API — with sub-300ms latency on US infrastructure.
Connect any LLM to any phone number.
The Nexcadia AI Voice Gateway translates between SIP/PSTN and modern AI voice APIs — giving you sub-300ms call legs to any LLM, running on US infrastructure, with zero BYOC friction.
AI Voice Gateway
SIP-to-AI bridge with <300ms end-to-end latency. Connect OpenAI Realtime API, ElevenLabs, NVIDIA NIM, or any WebSocket-compatible AI voice service. Bring your own model.
Real-Time Transcription
Dedicated real-time transcription trunk alongside live calls. Transcripts streamed via webhook to your application, CRM, or AI pipeline with speaker diarization.
Post-Call AI Summaries
Automatic post-call summary generation with sentiment scoring, key topic extraction, and intent classification. Pushed directly to agent inbox and/or CRM via webhook.
Call Analytics API
Full call analytics API with sentiment scoring, interruption detection, talk-time ratios, keyword spotting, and custom taxonomy — all queryable per call or in aggregate.
Everything you need, in one platform.
AI Gateway
- AI Voice Gateway
- OpenAI Realtime API
- ElevenLabs Connector
- NVIDIA NIM Support
Transcription
- Real-Time Transcription Trunk
- Speaker Diarization
- Webhook Transcript Delivery
Analytics
- Sentiment Scoring
- Post-Call Summaries
- Call Analytics API