AI Voice Agents

Build lifelike conversational voice experiences powered by low-latency Gemini AI reasoning models.

Overview

Sendexa AI Voice Agents integrate real-time Automated Speech Recognition (ASR), large language model reasoning, and Text-to-Speech synthesis (TTS) inside our low-latency VoIP media gateway. This allows developers to spin up intelligent voice assistants that hold human-like conversations over standard PSTN phone lines.

Core System Directives

Define the agent identity persona, interaction constraints, and conversational instructions.

Voice & Language Locales

Select from regional African dialects and accents including Ghanaian English, Twi, and Ewe.

Vector Knowledge Bases

Index files or crawl web documents to give agents persistent context memory during active calls.

Interactive Tool Calling

Voice agents can execute structured tools during calls. For example, if a customer requests speaking with a human representative, the agent automatically triggers the call transfer signaling protocol:

{ "name": "transferCallToHuman", "description": "Trigger call forward to human operator when requested", "parameters": { "type": "OBJECT", "properties": { "destinationNumber": { "type": "STRING", "description": "Escalation phone number" } }, "required": ["destinationNumber"] } }

Supported Ghana Accents & Locales

To cater to local audiences, Sendexa Voice Agents support high-fidelity synthesizers tuned to Ghanaian locales:

en-GH: Ghanaian English accent modulation
tw-GH: Native Twi language synthesizer
ee-GH: Native Ewe language synthesizer

Security Constraint Note

Always verify that outbound numbers targeted by voice campaigns or agents are whitelisted inside the Sendexa dashboard to avoid delivery rate limits.