Advanced Voice Mode is subject to Element451's usage-based pricing.
Overview
⚠️ When using AI voice capabilities in Element451, your institution is responsible for ensuring compliance with all applicable local, state, and federal laws related to phone communication and call recording.
Advanced Voice Mode brings Bolt Agents to life with real-time voice conversations across both live chat and phone. Agents can speak with students using natural language, respond in real time, and follow goals that guide the interaction.
Each voice-enabled Bolt Agent is assigned a unique AI voice. Whether a student is chatting in Messenger or talking by phone, the agent uses the same voice for a consistent, personalized experience.
Key Capabilities
With Advanced Voice Mode enabled, Bolt Agents can:
Speak with students naturally using real-time voice
Respond contextually with conversational memory
Use their voice in Messenger (Live Chat) and Phone Calling
Handle inbound calls when assigned to a phone number
Support students 24/7 without staffing limitations
Be assigned voices in different tones and languages
📌 Note: To use Advanced Voice Mode, users should make sure their device has a working microphone and that they have granted Messenger the necessary permissions for Element451 to access it.
Voice + Messenger (Live Chat)
When enabled, Messenger supports two-way voice conversations between students and Bolt Agents. This voice interaction happens inside the web-based Messenger widget.
How It Works + Availability
How It Works + Availability
Students can start speaking instead of typing
Bolt Agents reply in voice using their assigned voice profile
Conversations happen in real time, with immediate back-and-forth, mirroring a real phone call
Advanced Voice Mode is accessible wherever the Element451 Messenger is enabled:
Element451 Pages
Institution Website with Messenger Embed
WordPress Messenger Plugin
StudentHub
Optional Settings
Optional Settings
In Live Chat Settings, you’ll find two optional settings specific to voice mode:
Show Voice Mode Welcome Screen
Displays a consent prompt before students start speaking
Explains that their voice will be recorded and transcribed
Students can choose to continue or cancel to return to text chat
Show Recording Banner
Adds a visual banner during active recording for transparency
Device Requirements
Device Requirements
Student's device must have a working microphone
Browser must grant microphone permission to Messenger
Important Notes
Important Notes
For a Bolt Agent to reply in voice, they must have an assigned voice profile. We cover this in more detail below in Voice Configuration Requirements.
To use Advanced Voice Mode on Messenger, users should make sure their device has a working microphone and that they have granted Messenger the necessary permissions for Element451 to access it.
Voice recordings and transcripts are stored in the conversation thread
Voice + Phone Calling
Bolt Agents can also speak by phone when Advanced Voice Mode is paired with Element451’s Phone Calling feature.
Outbound Calls
Bolt Agents can place one-off outbound calls using the Phone Call channel or automated calls initiated by Bolt Jobs, using their assigned AI voice.
Inbound Calls
You can assign a Bolt Agent to a purchased Element451 phone number. When a student calls that number, the agent answers in real time using their voice profile.
Configuring Bolt Agents for Voice Mode
You must assign a voice profile to enable a Bolt Agent to be voice-compatible. To do this for an existing agent, follow these steps:
Navigate to Engagement > Bolt Agents.
Under the Agents section, locate the agent you wish to assign a voice to.
Click on the three vertical dots
for that agent and select Edit.Locate the Voice setting and select one from the list. For more details on selecting a voice, see the Voice Profile Options section below.
Click Save in the top right corner.
Identifying Agents with Voices
Identifying Agents with Voices
In Bolt Agent settings (Engagement > Bolt Agents), you’ll find a microphone icon next to each agent with an assigned voice, indicating they are compatible with Advanced Voice Mode.
Voice Profile Options
Voice Profile Options
When assigning a voice profile to a Bolt Agent, you can choose from around 60 unique voices powered by our integration with ElevenLabs and DeepGram.
Each voice supports specific languages, indicated by country flag icons.
Choose a voice that matches the languages your audience speaks.
After selecting a voice, click the play button to preview how it sounds before finalizing your choice.
Voice Name | Languages | Description |
Alice | English (US), Italian, French, Arabic, Japanese, Polish, Hindi | A middle-aged British female voice, clear, engaging, and friendly. Her professional tone is suitable for e-learning and advertisements. |
Amalthea | English (US) | A young adult Filipino female voice. Engaging, natural, and cheerful, perfect for casual chat. |
Andromeda | English (US) | An adult American female voice. Casual, expressive, and comfortable, suitable for customer service and IVR. |
Apollo | English (US) | An adult American male voice. Confident, comfortable, and casual, ideal for casual chat. |
Arcas | English (US) | An adult American male voice. Natural, smooth, clear, and comfortable, suitable for customer service and casual chat. |
Aria | English (US), French, Chinese, Turkish | A middle-aged American female voice with a calm, husky tone that carries a hint of rasp. Ideal for informative and educational content. |
Aries | English (US) | An adult American male voice. Warm, energetic, and caring, perfect for casual chat. |
Asteria | English (US) | An adult American female voice. Clear, confident, knowledgeable, and energetic, ideal for advertising. |
Athena | English (US) | A mature American female voice. Calm, smooth, and professional, excellent for storytelling. |
Atlas | English (US) | A mature American male voice. Enthusiastic, confident, approachable, and friendly, great for advertising. |
Aurora | English (US) | An adult American female voice. Cheerful, expressive, and energetic, suitable for interviews. |
Bill | English (US), French, Arabic, Chinese, German | An old American male voice, friendly, crisp, and comforting. Ready to narrate your stories or for advertisement use. |
Brian | English (US), Arabic, Chinese, Portuguese, German, Dutch, Romanian, Hindi | A middle-aged American male voice with a resonant, classy, and comforting tone. Great for narrations, advertisements, and social media. |
Callista | English (US) | An adult American female voice. Clear, energetic, professional, and smooth, perfect for IVR systems. |
Callum | English (US), French, Hindi | A middle-aged male voice with a deceptively gravelly tone and an unsettling edge. Ideal for character roles. |
Charlie | English (US), Chinese, Portuguese, Tagalog, Spanish | A young Australian male voice, confident and energetic. His hyped delivery is great for conversational content. |
Charlotte | English (US), Chinese, Arabic, Spanish, Swedish | A young Swedish female voice, relaxed with a sensual and raspy quality. Ideal for characters and animation. |
Chris | English (US), French, Arabic, Portuguese, Swedish, Hindi | A middle-aged American male voice, natural, real, and down-to-earth. Great for many conversational use cases. |
Cora | English (US) | An adult American female voice. Smooth, melodic, and caring, ideal for storytelling. |
Cordelia | English (US) | A young adult American female voice. Approachable, warm, and polite, suitable for storytelling. |
Daniel | English (US), German, Turkish | A middle-aged British male voice, strong and formal. Perfect for professional broadcasts and educational content. |
Delia | English (US) | A young adult American female voice. Casual, friendly, cheerful, and breathy, great for interviews. |
Draco | English (US) | An adult British male voice. Warm, approachable, trustworthy, with a baritone quality, perfect for storytelling. |
Electra | English (US) | An adult American female voice. Professional, engaging, and knowledgeable, suitable for IVR and customer service. |
Eric | English (US), French, Portuguese, German, Spanish | A middle-aged American male voice with a smooth, classy tenor pitch. Perfect for agentic and conversational use cases. |
George | English (US), French, Arabic, Japanese, Tagalog, Spanish, Hindi | A middle-aged British male voice with a warm, mature, and captivating resonance. Excellent for narrative storytelling. |
Harmonia | English (US) | An adult American female voice. Empathetic, clear, calm, and confident, ideal for customer service. |
Helena | English (US) | An adult American female voice. Caring, natural, positive, friendly, and raspy, suitable for IVR and casual chat. |
Hera | English (US) | An adult American female voice. Smooth, warm, and professional, excellent for storytelling. |
Hermes | English (US) | An adult American male voice. Expressive, engaging, and professional, great for informative content. |
Hyperion | English (US) | An adult Australian male voice. Caring, warm, and empathetic, suitable for interviews. |
Iris | English (US) | A young adult American female voice. Cheerful, positive, and approachable, perfect for IVR systems. |
Janus | English (US) | An adult American female voice with a southern accent. Smooth and trustworthy, ideal for storytelling. |
Jessica | English (US), French, Arabic, Japanese, Chinese, German, Hindi | A young American female voice, popular, playful, and cute. Perfect for trendy conversational content. |
Juno | English (US) | An adult American female voice. Natural, engaging, melodic, and breathy, suitable for interviews. |
Jupiter | English (US) | An adult American male voice. Expressive, knowledgeable, with a baritone quality, great for informative content. |
Laura | English (US), French, Arabic, Chinese, German | A young American female voice with a sassy, enthusiastic, and quirky attitude. Perfect for social media content. |
Liam | English (US), German, Portuguese, Polish, Turkish, Hindi | A young American male voice, confident with energy and warmth. Suitable for social media. |
Luna | English (US) | A young adult American female voice. Friendly, natural, and engaging, perfect for IVR systems. |
Mars | English (US) | An adult American male voice. Smooth, patient, trustworthy, with a baritone quality, ideal for customer service. |
Matilda | English (US), Italian, French, German, Arabic, Spanish | A middle-aged American female voice, professional and upbeat with a pleasing alto pitch. |
Minerva | English (US) | An adult American female voice. Positive, friendly, and natural, suitable for storytelling. |
Neptune | English (US) | An adult American male voice. Professional, patient, and polite, great for customer service. |
Odysseus | English (US) | An adult American male voice. Calm, smooth, comfortable, and professional, perfect for advertising. |
Ophelia | English (US) | An adult American female voice. Expressive, enthusiastic, and cheerful, ideal for interviews. |
Orion | English (US) | An adult American male voice. Approachable, comfortable, calm, and polite, suitable for informative content. |
Orpheus | English (US) | An adult American male voice. Professional, clear, confident, and trustworthy, great for customer service and storytelling. |
Pandora | English (US) | An adult British female voice. Smooth, calm, melodic, and breathy, suitable for IVR. |
Phoebe | English (US) | An adult American female voice. Energetic, warm, and casual, suitable for customer service. |
Pluto | English (US) | An adult American male voice. Smooth, calm, empathetic, with a baritone quality, suitable for interviews and storytelling. |
River | English (US), Italian, French, Portuguese, Chinese | A middle-aged American neutral voice, relaxed and calm. Well-suited for narrations or conversational projects. |
Sarah | English (US), French, Arabic, Chinese, Spanish, Hindi | A young American female voice that is confident, warm, and professional. Her tone is well-suited for entertainment and TV. |
Saturn | English (US) | An adult American male voice. Knowledgeable, confident, with a baritone quality, suitable for customer service. |
Selene | English (US) | An adult American female voice. Expressive, engaging, and energetic, suitable for informative content. |
Thalia | English (US) | An adult American female voice. Clear, confident, energetic, and enthusiastic, suitable for casual chat and IVR. |
Theia | English (US) | An adult American female voice. Expressive, polite, and sincere, suitable for informative content. |
Vesta | English (US) | An adult American female voice. Natural, expressive, patient, and empathetic, suitable for customer service and storytelling. |
Will | English (US), French, German, Portuguese, Chinese, Tagalog, Spanish, Swedish | A young male voice with a friendly tone. Well-suited for social media applications. |
Zeus | English (US) | An adult American male voice. Deep, trustworthy, and smooth, suitable for IVR. |
Troubleshooting
Microphone Permission Error
Microphone Permission Error
This error occurs when using Advanced Voice Mode in Messenger from an external website (not Element451 pages). It primarily affects Chrome and Firefox users and originates from the website’s Permissions-Policy header, which may block microphone access within our <iframe>.
Solution: To resolve this, update your website’s headers to allow microphone access. This change will enable the browser to recognize and use the microphone within the iframe for Advanced Voice Mode.