Building AI-Driven Voice Applications with Amazon Nova Sonic: Telephony Integration Guide

As organizations look to deliver more natural, human-like customer interactions, real-time voice communication powered by generative AI becomes essential. Amazon Nova Sonic, a speech-to-speech AI model available via the Amazon Bedrock bidirectional streaming API, brings conversational intelligence to telephony environments with:

• Human-like, low-latency voice responses
• Natural turn-taking and support for interruptions
• Multilingual, expressive speech output
• Understanding of diverse accents and speaking styles
• Seamless connection to business systems, CRMs, and external tools

As an official partner of Amazon Web Services, Softprom helps companies integrate Nova Sonic into their communication ecosystems to automate call center operations, improve customer support, and build advanced conversational voice agents.

Where Amazon Nova Sonic Delivers the Most Value

1. AI Call Center Agents

Nova Sonic can fully handle inbound support calls, provide technical assistance, respond to inquiries, and replace outdated IVR systems so customers can speak naturally instead of navigating menus. During peak loads, it can manage overflow traffic and escalate complex cases to human agents with complete conversation summaries.

2. Receptionist & Outreach Automation

By connecting to CRMs, calendars, or internal systems, Nova Sonic can:

• Schedule and reschedule appointments
• Answer company-related questions
• Route calls intelligently
• Conduct proactive outreach (reminders, feedback collection, surveys)

Its speech-to-speech design ensures fluid, natural dialogue.

Integrating Amazon Nova Sonic into Telephony Architectures

To connect Nova Sonic to a telephony system, you need an application server that establishes a persistent bidirectional streaming session. Depending on your existing infrastructure, integration can happen through:

• Direct SIP connectivity
• Cloud telephony providers (Vonage, Twilio, Genesys, Amazon Connect)
• Open-source communication frameworks (Pipecat, LiveKit)

Below is an overview of the most common integration patterns.

1. Direct SIP Integration: For Legacy PBX & On-Premise Systems

Organizations using SIP-based telephony (PBX, SIP trunks, VoIP providers) can integrate Nova Sonic through a gateway application server that handles:

• SIP signaling
• RTP audio streams
• A persistent bidirectional stream to Amazon Nova Sonic

Two sample architectures exist:

1. Java SIP gateway using mjSIP + AWS SDK for Java
2. JavaScript SIP gateway using SIP.js + AWS SDK for JavaScript

How it works

• An incoming call arrives via SIP
• The SIP server answers and sets up RTP media streams
• Audio from the caller is decoded and streamed to Nova Sonic
• Nova Sonic returns synthesized speech back through RTP
• The system manages interruptions, turn-taking, and continuous streaming

Deployment options:

• Amazon EC2 with open ports (5060 for SIP, 10000–20000 for RTP)
• Amazon ECS (host networking mode)

This direct approach provides full control and is ideal for integrating Nova Sonic into traditional enterprise telephony environments.

2. Integrations with Cloud Telephony Providers

Cloud telephony services simplify voice infrastructure and provide APIs for call control, audio streaming, and queue management.

3. Integrations with Open-Source Frameworks

Open-source frameworks help accelerate the development of AI voice applications.

Cleaning Up Resources

To avoid unnecessary costs, remove:

• EC2 instances or ECS workloads used for SIP servers
• IAM roles and policies created for this integration
• Telephony provider test numbers 
• Sample apps deployed from GitHub repositories

Always verify cleanup via the AWS Billing Dashboard.

Conclusion

Amazon Nova Sonic unlocks a new generation of natural, expressive, AI-powered telephony experiences. Whether you use legacy SIP, modern cloud telephony providers, or flexible open-source frameworks, there is an integration option that fits your environment.

As an official AWS partner, Softprom helps organizations design, integrate, and deploy Nova Sonic–based telephony solutions that enhance productivity, improve customer experience, and deliver highly scalable automation.

To begin exploring your options or request implementation support, reach out to Softprom’s AWS team today.