
Voice AI
Real-Time AI Voice Agent for Customer Support
A real-time AI voice agent that replaced a rigid IVR: under 800 ms latency, 10,000+ queries a month and 85% resolved on first contact.
- Client
- Global Vertex Solutions
- Stack
- Python · Deepgram · Cartesia · OpenAI

The challenge
Handling complex customer interactions at scale while maintaining a natural, human-like voice experience is a massive engineering hurdle. The traditional IVR systems at Global Vertex Solutions (GVS) were too rigid, forcing callers through frustrating numerical menus that resulted in high abandonment rates and poor brand perception.
Initial attempts at implementing AI voice agents failed internally due to high latency and robotic delivery. When customers call a premium business, they expect immediate, intelligent and empathetic responses. Conversational delays of even 1.5 seconds completely break the conversational illusion.
The organization needed a highly sophisticated system capable of understanding nuanced human interruptions, capturing multi-step intents instantaneously and resolving level-1 queries without ever escalating to a human agent—all while sounding indistinguishable from their best human staff.
The solution
To overcome the latency barriers, we bypassed standard conversational agents and built a custom, highly optimized architectural pipeline. We leveraged Deepgram for lightning-fast speech-to-text, advanced LLMs perfectly prompted for tight intent recognition and Cartesia for ultra-realistic text-to-speech generation.
By strategically streaming audio chunks and optimizing our server locations, we deployed an intelligent voice agent with latency under 800 ms. The agent naturally handles interruptions, dynamically shifts context mid-conversation and correctly routes complex workflows directly into the backend enterprise CRM without missing a beat.
Deployed across their primary support lines, the AI voice agent currently fields over 10,000 queries per month with an 85% first-touch resolution rate. This dramatic efficiency leap freed the human tier-2 support teams to focus exclusively on highly complex customer success initiatives.
Results
- Latency
- <800ms
- First-contact resolution
- 85%

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