Call Settings Overview
What you’ll learn: How to configure call settings including transfer numbers, AI models, voice options, caller ID, and call management features for optimal campaign performance.
Core Call Settings
Call Transfer Number
The phone number or SIP URI that your AI bot will transfer calls to when needed.- Phone Number
- SIP URI
- Custom Configuration
Standard Phone Number FormatEnter the phone number without the
+ prefix:The system will automatically format the number with the appropriate country code during call processing.
Disconnect Call Automatically
Automatically disconnect calls after a specified duration to prevent misuse and control costs.Why Use Auto-Disconnect?
Prevent Bot Abuse
Prevent Bot Abuse
Protection Against Misuse
- Stops people from playing with your bot indefinitely
- Prevents unnecessary resource consumption
- Maintains professional call handling
Budget Control
Budget Control
Cost Management
- Limits maximum call duration charges
- Prevents runaway costs from stuck calls
- Ensures predictable billing
System Efficiency
System Efficiency
Resource Optimization
- Frees up system resources for legitimate calls
- Maintains optimal performance
- Reduces server load
Configuration Options
| Duration | Use Case | Recommended For |
|---|---|---|
| 2-3 minutes | Quick surveys, confirmations | Simple interactions |
| 5-7 minutes | Customer service, support | Standard conversations |
| 10-15 minutes | Sales calls, consultations | Complex discussions |
| Custom | Specialized use cases | Enterprise needs |
Gateway Configuration
The communication gateway through which your calls are routed and processed.Default Gateway Options
Standard Gateways
Included with all plans:
- Vodex default gateway (Only for testing)
- Standard SIP routing
- Basic call management
- Standard quality assurance
Custom SIP Integration
Enterprise SIP Solutions
Available for paid tiers:
- Custom SIP provider integration
- Enterprise-grade routing
- Advanced call management
- Dedicated support
Need SIP Trunk Integration? Check our comprehensive SIP Trunk Requirements Guide for detailed technical requirements, configuration examples, and integration steps.
AI Model Selection
Choose the AI model that best fits your use case and performance requirements.Out-of-the-Box Models
Professional AI models ready for immediate use:- Claude Models
- GPT Models
- Llama Models
Anthropic Claude Series
Ideal for:
| Model | Best For | Characteristics |
|---|---|---|
| Claude Haiku | Quick responses, simple tasks | Fast, efficient, cost-effective |
| Claude Sonnet | Balanced conversations | Good reasoning, natural dialogue |
- Customer service interactions
- Appointment scheduling
- Information gathering
- Professional conversations
Vodex Optimized Models
Specially tuned models optimized for calling scenarios:- Spark Series
- Performance Characteristics
Vodex Spark ModelsBased on Vodex’s custom architecture, optimized for voice conversations:
| Model | Optimization |
|---|---|
| Spark | Balanced performance for professional calls |
| Spark Flash | Ultra-fast responses, real-time conversations |
| Spark Flash Lite | Lightweight, cost-effective interactions |
Model Selection Guide: Choose Spark for complex sales calls, Spark Flash for customer service, and Spark Flash Lite for simple confirmations or surveys.
Voice Configuration
Select from premium voice providers to create the perfect audio experience for your calls.Available Voice Providers
- ElevenLabs (Default)
- RimeLabs
- Azure Cognitive Services
- Google Ultra Realistic
Premium AI VoicesFeatures:
- Ultra-realistic voice synthesis
- Multiple voice personalities
- Emotional expression capabilities
- Multiple languages and accents
- For English: Select ElevenLabs Turbo v2 or ElevenLabs Flash V2
- For Multi-lingual: Use ElevenLabs Flash 2.5 or Turbo 2.5 to get proper accent
- Professional business calls
- Customer service interactions
- Sales conversations
- Any scenario requiring natural-sounding voices
Voice Provider Access: While ElevenLabs is available by default, access to RimeLabs, Azure, and Google voices requires contacting support@vodex.ai for configuration.
Voicemail Detection
Advanced voicemail detection system to optimize call handling and costs.How It Works
1
VAD-Based Detection
Voice Activity Detection Technology
- Non-LLM based detection system
- Works across all countries and languages
- Independent of ASR, LLM, and voice settings
- 85% accuracy rate in standard conditions
2
Smart Timing
Optimized Detection Timing
- Bot starts speaking after 10 seconds of voicemail detection
- Allows for various voicemail greeting lengths
- Reduces false positives from long greetings
3
Beep Detection
Enhanced Accuracy with Beep Recognition
- Detects voicemail beep signals
- Restarts message delivery after beep detection
- Ensures 90% voicemail drop success rate
- Maximizes message delivery effectiveness
Cost Structure
| Scenario | Charge | Explanation |
|---|---|---|
| Voicemail Detected + Disconnected | 3 cents | Call ends without leaving message |
| Voicemail Detected + Message Left | 3 cents | Successful voicemail delivery |
| Live Person Answered | Standard rate | Normal conversation charges apply |
Cost Optimization: The 3-cent voicemail charge is significantly lower than full conversation rates, helping you manage costs while maintaining campaign effectiveness.
Caller ID Configuration
Twilio Caller ID Management
Twilio Exclusive Feature: Caller ID configuration is only available when using Twilio as your gateway provider.
Geographic Limitation: Only US and Canada Caller IDs are supported for Twilio. For custom trunks, please check with your trunking provider on supported caller IDs.
How Twilio Caller ID Works
Twilio’s Caller ID system allows you to display specific phone numbers to recipients, improving answer rates and call legitimacy.Configuration Requirements
1
Phone Number Verification
Verify Your Numbers
- All caller ID numbers must be verified with Twilio
- Verification prevents spoofing and ensures compliance
- Process typically takes 24-48 hours
2
Compliance Setup
Regulatory Compliance
- Follow local telecommunications regulations
- Ensure proper business registration
- Maintain accurate caller identification
3
Number Pool Management
Optimize Number Usage
- Rotate between verified numbers
- Match caller ID to campaign type
- Monitor number reputation and performance
Best Practices
Caller ID Strategy: Use local numbers for regional campaigns, toll-free numbers for national campaigns, and business numbers for professional services.
| Campaign Type | Recommended Caller ID | Benefits |
|---|---|---|
| Local Business | Local area code numbers | Higher answer rates, local trust |
| National Service | Toll-free numbers | Professional appearance, no charges to recipients |
| Customer Service | Main business line | Brand recognition, established trust |
| Sales Outreach | Dedicated sales numbers | Call tracking, performance measurement |
Next Steps
Now that you understand call settings:- Configure your transfer number based on your routing needs
- Select the appropriate AI model for your use case
- Choose your voice provider (contact support for premium options)
- Set up voicemail detection to optimize costs
- Configure caller ID if using Twilio
Ready to optimize your calls? Proper call settings configuration ensures professional, cost-effective, and successful AI calling campaigns. Take time to configure each setting according to your specific needs.
Need advanced configuration? Check out our Advanced Settings guide for language codes, ASR options, webhooks, and transfer configurations.