AI Voice Agent (Phone Agent)

A voice agent chains three components in a loop that must finish in well under a second: automatic speech recognition (ASR) turns audio into text, a large language model reads it together with the conversation so far and any tool results (calendar, order status, CRM), and text-to-speech (TTS) speaks the reply. Newer speech-to-speech models merge the steps. Telephony connects the agent to a real number through SIP or call forwarding, so the business keeps its existing line. When the caller asks for something outside the agent's scope, it transfers the call to a person along with a summary.

In the Gulf and Egypt the phone is still where clinics, real-estate brokers and restaurants lose business: calls ring out after hours, and callers hang up on hold music. A voice agent that answers every call in the caller's own dialect (Najdi, Hejazi, Emirati, Egyptian), books the slot, and sends a WhatsApp confirmation closes that gap. The hard parts are dialect recognition, code-switching between Arabic and English, sub-second response so the conversation feels natural, and barge-in so the caller can interrupt. Most voice deployments are inbound; outbound reminder and confirmation calls are still rarely productised.

Nano AI publishes its voice pricing: Starter at $149 per month per line with $0 setup and a 14-day money-back guarantee, and a Growth pilot at $400 setup plus $220 per month per line, with custom enterprise options. The agent answers in the caller's dialect, books appointments, sends WhatsApp confirmations and hands off to staff, and works with existing numbers. Before choosing any vendor, run a live test call in your dialect, interrupt the agent mid-sentence, ask an off-script question, and time the pauses; those four checks reveal more than any feature list.