OpenSpan™ Inbuilt Service
Activate services with a single phrase
Keyword Voice Activated Services lets customers trigger secure, branded voice experiences instantly—hands-free—while keeping privacy and performance carrier-grade.
- Custom wake-word / hotword (brandable activation phrase)
- Privacy gate — voice processing begins only after the keyword
- Low-latency design for fast “wake → action” flows
- Composes with OpenSpan modules for screening, transcription and agentic automation
Jump to: Overview • Benefits • Use cases • How it works • Technical details

Keyword activation — carrier-grade voice entry point
Keyword Voice Activated Services provides a wake-word / hotword activation layer for voice experiences delivered via OpenSpan. Users say a short phrase (for example, a carrier-branded keyword) and the service immediately routes them into the right workflow—agentic IVR, concierge, voicemail actions, account services, or enterprise support.
The key point: the keyword acts as a privacy and compute gate. Until the activation phrase is detected, downstream speech recognition and AI processing stays off—protecting user privacy and controlling cost. Once triggered, the platform can invoke fast, deterministic actions or full conversational AI—depending on your product design.
Key benefits
A keyword layer turns voice services into an instant, branded experience—while reducing friction, improving privacy posture, and enabling consistent performance at scale.
Hands-free activation
Customers trigger services while driving, working, or multitasking—no menus, no app tapping, no PIN-tree frustration.
Privacy & compute gate
Voice processing begins only after the keyword—reducing unintended capture and ensuring AI workloads run only when needed.
Brandable experience
Use a carrier-branded phrase and consistent voice personality—turning “voice access” into a differentiated product.
Low-latency “wake → action”
Optimised for fast activation and immediate task execution—especially important for call routing, security prompts and time-sensitive journeys.
Fewer false triggers
Configurable thresholds and pronunciation variants allow you to tune for low false accepts while maintaining a smooth user experience.
Seamless OpenSpan composition
Combine keyword activation with call screening, translation, summarisation and agentic flows—without rebuilding your integration.
Use-case scenarios
Carrier self-service without menus
Customers say a branded phrase and immediately request tasks like “check my balance”, “activate roaming”, or “speak to support”—without navigating keypad trees.
Secure voicemail and call controls
Use a keyword to enter a secure workflow: play voicemail summaries, request message transcription, or trigger follow-up actions—fast and hands-free.
Enterprise concierge
Employees activate an internal voice assistant to log a ticket, check an outage status, or access a policy—then escalate to a human only when needed.
Safety & scam defence journeys
Combine wake-word activation with call screening so users can instantly ask, “Is this call safe?” or request an in-call verification flow—without breaking the conversation.
How it works
The keyword layer operates as a lightweight “always-listening” detector. When the wake phrase is recognised, OpenSpan can immediately trigger the right downstream workflow—anything from a deterministic service action to a full conversational AI session.
- Detect: listen for a short activation phrase (wake word / hotword).
- Verify: apply verification logic to reduce false accepts (policy and threshold tuning).
- Activate: open the voice session and route to the correct service workflow.
- Execute: perform a task (routing, lookup, booking) or launch a conversational agent.
- Compose: optionally pair with screening, transcription, summarisation or translation modules.
Technical details (high level)
Keyword activation is designed as a multistage system to balance accuracy, latency and compute—tuned for carrier environments. Models can be customised for pronunciations and regional variations, with operational controls appropriate for high-scale deployments.
Note: final deployment patterns, privacy controls and integration options are tailored to operator requirements and regulatory context.
Pilot Keyword Voice Activated Services
Talk to Norwood Systems about choosing a branded wake phrase, tuning accuracy/latency, and deploying keyword activation within your OpenSpan roadmap.

