CTICloud Regions

Introduction

CTICloud operates a globally distributed infrastructure across multiple regions to provide low-latency, high-quality voice services closer to your users. Each region contains isolated and independent data centers, ensuring data sovereignty, compliance with local regulations, and optimal performance.

Choosing the right region is critical for:

• Latency Optimization - Reduced call setup time and improved voice quality
• Data Residency - Compliance with local data protection laws
• Regulatory Compliance - Meeting industry-specific requirements (HIPAA, GDPR, etc.)
• Business Continuity - Regional failover and disaster recovery capabilities

Available Regions

CTICloud is available in the following regions:

Note: All regions use a numbered suffix (e.g., us-1, jp-1, sg-1) to support future multi-platform deployments in the same geographic area. This allows for easy expansion to us-2, jp-2, sg-2, etc., as demand grows.

China Regions (cn-1, cn-2, cn-3)

Best For: Organizations operating within mainland China or serving Chinese customers

Features:

• Full integration with Chinese telecom carriers (China Mobile, China Unicom, China Telecom)
• ICP license compliance
• Local data storage as required by Chinese data protection laws
• Optimized routing for domestic calls within China
• Lower latency for users in mainland China

Cloud Infrastructure:

• Alibaba Cloud (cn-1) - Leading Chinese cloud provider with extensive domestic network
• AWS (cn-2) - Global infrastructure with China presence
• Huawei Cloud (cn-3) - Enterprise-grade cloud services with strong carrier partnerships
• Volcano Engine (cn-7) - ByteDance's cloud platform with advanced AI capabilities

Compliance:

• China Cybersecurity Law
• Personal Information Protection Law (PIPL)
• Data Security Law

Notes:

• Multiple China regions available for load distribution and disaster recovery
• Region selection may depend on your business license location and preferred cloud provider
• Cross-border data transfer requires proper authorization
• Each cloud provider offers unique advantages in terms of connectivity and services

North America Region (us)

Best For: Organizations serving customers in the United States, Canada, and Latin America

Features:

• Integration with North American carriers (AT&T, Verizon, T-Mobile, etc.)
• Low latency for US and Canadian users
• HIPAA compliance support for healthcare organizations
• SOC 2 Type II certified data centers
• Multi-zone redundancy within the region

Cloud Infrastructure:

• AWS - Global leader with extensive North American presence and carrier partnerships

Compliance:

• HIPAA (Health Insurance Portability and Accountability Act)
• GDPR (for EU citizens)
• CCPA (California Consumer Privacy Act)
• SOC 2 Type II

Notes:

• Recommended for US-based healthcare providers
• Supports static IP addresses for firewall whitelisting
• 99.99% uptime SLA

Japan Region (jp)

Best For: Organizations serving Japanese customers or operating in Japan

Features:

• Integration with Japanese telecom carriers (NTT, KDDI, SoftBank)
• Low latency for Japanese users
• Localized voice quality optimization
• Japanese language support in IVR and AI features

Cloud Infrastructure:

• AWS - Tokyo region with robust local infrastructure and carrier connectivity

Compliance:

• Act on the Protection of Personal Information (APPI)
• Telecommunications Business Act

Notes:

• Ideal for Japanese enterprises and BPO operations
• Supports Japanese voice prompts and TTS

Singapore Region (sg)

Best For: Organizations serving customers in Southeast Asia, Australia, and the Asia-Pacific region

Features:

• Hub for Southeast Asian operations
• Integration with regional carriers
• Low latency for APAC users
• Multi-lingual support (English, Mandarin, Malay, Tamil)

Cloud Infrastructure:

• Alibaba Cloud - Strong presence in Asia-Pacific with excellent regional connectivity

Compliance:

• Personal Data Protection Act (PDPA)
• ISO 27001 certified
• MAS Technology Risk Management Guidelines (for financial services)

Notes:

• Optimal for companies expanding in APAC
• Gateway to Southeast Asian markets

How to Choose a Region

1. Consider Your User Base

Select the region closest to your primary users for optimal voice quality and minimal latency:

• Users in mainland China → China regions (cn-1, cn-2, cn-3)
• Users in North America → us-1
• Users in Japan → jp-1
• Users in Southeast Asia/APAC → sg-1

2. Compliance Requirements

Choose a region that meets your regulatory and compliance needs:

3. Business Licensing

• China ICP License: Must use China regions (cn-*)
• Japanese Business License: Recommended to use jp-1
• US Healthcare Provider: Must use us-1 for HIPAA compliance

4. Carrier Integration

Consider which carriers you need to integrate with:

• Chinese carriers only → China regions
• North American carriers → us-1
• Japanese carriers → jp-1
• Southeast Asian carriers → sg-1

5. Cloud Provider Preference

If your organization already uses a specific cloud provider, you may prefer regions on the same infrastructure:

Benefits of matching cloud providers:

• Simplified network connectivity and peering
• Consistent security policies and compliance
• Unified billing and cost management
• Easier integration with existing cloud resources
• Potential cost savings on data transfer

6. High Availability Requirements

Consider your uptime and disaster recovery needs:

When to consider Dual-Cloud Active-Active:

• Financial services requiring zero downtime
• Healthcare providers with strict availability mandates
• Enterprise call centers with 24/7 operations
• Business-critical customer service operations
• Organizations with strict SLA commitments

Note: Dual-Cloud Active-Active is a premium paid feature. Contact [email protected] for pricing and availability.

Data Residency and Sovereignty

What Data Stays in Region

The following data is stored and processed within your selected region:

• Call recordings - Audio files stored in regional data centers
• Call transcriptions - Text transcriptions remain in region
• Call logs - Call detail records (CDR) and metadata
• Customer data - Agent information, queue configurations, IVR scripts
• Temporary data - Real-time call processing buffers

Cross-Region Data Transfer

CTICloud does not automatically transfer data across regions unless explicitly configured:

• Default Behavior: All data remains in the selected region
• Multi-Region Deployments: Requires explicit configuration and may have compliance implications
• Data Export: Manual data export follows your region's data transfer regulations

China-Specific Considerations

For China regions (cn-*):

• Data Localization: All data is stored within mainland China
• Cross-Border Transfer: Requires security assessment and government approval
• Real-Name Registration: Phone numbers require real-name verification
• ICP Filing: Required for voice services

Latency and Performance

Expected Latency (Call Setup Time)

Voice Quality Optimization

To ensure optimal voice quality:

1. Select the closest region to your majority user base
2. Use regional carriers for local phone numbers
3. Configure codec preference based on regional network conditions
4. Monitor performance using CTICloud analytics

Multi-Region Deployments

Use Cases

Consider multi-region deployments for:

• Global Operations - Serving customers across multiple continents
• Disaster Recovery - Regional failover capabilities
• Load Distribution - Distributing traffic across regions
• Compliance - Meeting data residency requirements in multiple jurisdictions
• High Availability - Dual-Cloud Active-Active for maximum uptime (premium feature)

Dual-Cloud Active-Active Deployment

CTICloud offers Dual-Cloud Active-Active architecture, allowing your business to run simultaneously across two cloud regions. This advanced deployment model provides:

Key Benefits:

• Maximum Availability - Continuous service even if one cloud provider experiences issues
• Zero-Downtime - Seamless failover without service interruption
• Load Balancing - Distribute traffic across both cloud regions for optimal performance
• Disaster Recovery - Built-in redundancy across different cloud infrastructures
• Compliance - Meet stringent uptime requirements for enterprise and financial services

How It Works:

In a dual-cloud active-active configuration:

1. Your traffic is distributed across two different cloud regions simultaneously
2. Both regions actively process calls and handle customer interactions
3. If one region becomes unavailable, traffic automatically routes to the healthy region
4. Data synchronization ensures consistency across both clouds

Example Configuration:

┌─────────────────────────────────────┐
│      Traffic Distribution           │
│        (Load Balancer)              │
└───────────┬─────────────┬───────────┘
            │             │
     50%    │             │    50%
            ▼             ▼
┌─────────────────┐   ┌─────────────────┐
│   cn-1 Region   │   │   cn-2 Region   │
│ Alibaba Cloud   │   │      AWS        │
│  (Active)       │   │   (Active)      │
└─────────────────┘   └─────────────────┘
         │                     │
         └──────────┬──────────┘
                    │
            Data Sync & Failover

Pricing:

Note: Dual-Cloud Active-Active deployment is a premium feature that requires additional licensing fees. Contact your account manager at [email protected] for pricing details and to enable this feature for your organization.

Best For:

• Financial institutions requiring 99.99%+ uptime
• Healthcare providers with zero-downtime requirements
• Large enterprises with global operations
• Mission-critical call centers
• Organizations with strict disaster recovery mandates

Setup Requirements:

• Minimum two regions in the same geographic area (e.g., cn-1 and cn-2)
• Enterprise support plan
• Dedicated account management
• Professional services for initial configuration

Architecture Pattern

┌─────────────────┐       ┌─────────────────┐
│   China Users   │       │   US Users      │
└────────┬────────┘       └────────┬────────┘
         │                         │
         ▼                         ▼
┌─────────────────┐       ┌─────────────────┐
│  cn-1 Region    │       │  us-1 Region    │
│  Tenant: cn001  │       │  Tenant: us001  │
└─────────────────┘       └─────────────────┘
         │                         │
         └────────┬────────────────┘
                  ▼
         ┌─────────────────┐
         │  Your Backend   │
         │   (Webhooks)    │
         └─────────────────┘

Configuration

Each region requires a separate tenant configuration:

// China Region Tenant
{
  "tenantId": "cn001",
  "region": "cn-1",
  "name": "My Org - China"
}

// US Region Tenant
{
  "tenantId": "us001",
  "region": "us-1",
  "name": "My Org - US"
}

Request Routing

Route requests based on user location:

function getAPIEndpoint(userCountry) {
  const regionMap = {
    'CN': 'https://api-cn-1.cticloud.cn',
    'US': 'https://api-us-1.cticloud.cn',
    'CA': 'https://api-us-1.cticloud.cn',
    'JP': 'https://api-jp-1.cticloud.cn',
    'SG': 'https://api-sg-1.cticloud.cn',
    'MY': 'https://api-sg-1.cticloud.cn',
    'TH': 'https://api-sg-1.cticloud.cn'
  };
  
  return regionMap[userCountry] || 'https://api-us-1.cticloud.cn';
}

Best Practices

Region Selection

• ✅ Choose the region closest to your primary user base
• ✅ Consider data residency requirements early in planning
• ✅ Test latency from your users' locations before going live
• ✅ Review compliance requirements for your industry and location
• ✅ Plan for growth - consider future expansion needs

API Integration

• ✅ Use region-specific endpoints - Do not use generic URLs
• ✅ Configure SDK correctly - Set region during initialization
• ✅ Handle region-specific errors - Different regions may have different limitations
• ✅ Test in each region - Behavior may vary slightly between regions
• ✅ Monitor performance - Track latency and voice quality metrics

Security

• ✅ Use static IP whitelisting - Available in all regions
• ✅ Enable TLS 1.2+ - Ensure encrypted communications
• ✅ Implement proper authentication - Use API keys securely
• ✅ Regular security audits - Review access patterns
• ✅ Follow regional security standards - Each region may have specific requirements

Operational

• ✅ Document your region choice - For future reference and audits
• ✅ Train staff on regional differences - Especially for multi-region deployments
• ✅ Monitor status pages - Subscribe to regional status updates
• ✅ Plan for maintenance windows - Different regions have different schedules
• ✅ Have a fallback plan - For regional outages or issues

High Availability and Disaster Recovery

• ✅ Evaluate Dual-Cloud Active-Active - For mission-critical applications requiring maximum uptime
• ✅ Consider geographic diversity - Choose regions in different locations for disaster recovery
• ✅ Test failover procedures - Regularly validate your disaster recovery plan
• ✅ Monitor both regions - In dual-cloud deployments, ensure both regions are healthy
• ✅ Plan for data consistency - Understand data synchronization in active-active setups

Frequently Asked Questions

Q: Can I change my region after deployment?

A: Region migration is possible but requires planning. Contact CTICloud support to discuss migration options. Note that changing regions may require updating phone numbers, carrier integrations, and compliance documentation.

Q: Can I use multiple China regions simultaneously?

A: Yes, you can deploy across multiple China regions for redundancy or load distribution. Each region will require a separate tenant configuration.

Q: What is Dual-Cloud Active-Active deployment?

A: Dual-Cloud Active-Active is a premium feature that allows your business to run simultaneously across two cloud regions with active-active load balancing. This provides maximum availability, zero-downtime failover, and built-in disaster recovery across different cloud providers. This feature requires additional licensing fees. Contact [email protected] for more information.

Q: How much does Dual-Cloud Active-Active cost?

A: Dual-Cloud Active-Active deployment is a premium add-on service with additional licensing fees. Pricing varies based on your traffic volume, selected regions, and service level requirements. Contact your account manager for a customized quote.

Q: Which region should I choose for international calling?

A: For international calling, choose the region closest to where most calls originate. For example, if most calls originate from China but terminate internationally, use a China region. If calls originate from various locations, consider multi-region deployment.

Q: Are there price differences between regions?

A: Pricing may vary by region due to local carrier costs, compliance requirements, and infrastructure expenses. Contact your account manager for region-specific pricing.

Q: What happens if my region experiences an outage?

A: CTICloud maintains high availability within each region through multi-zone redundancy. For additional protection, consider implementing a multi-region disaster recovery strategy.

Q: Can I test multiple regions before choosing one?

A: Yes, CTICloud can provide trial access to multiple regions. Contact [email protected] to request multi-region testing.

Q: Do all features work the same in every region?

A: Most features are consistent across regions, but some region-specific limitations may exist due to local regulations or carrier capabilities. Review the region-specific documentation or contact support for details.

Q: How do I monitor the health of my region?

A: CTICloud provides a status page for each region. Subscribe to status updates at status.cticloud.cn. You can also use the monitoring API to check real-time performance metrics.

Q: Does the cloud provider affect my service quality or features?

A: No. While CTICloud regions are hosted on different cloud providers, all regions offer the same core features and quality standards. The cloud provider primarily affects network routing and data center location. You may see slight variations in latency and connectivity patterns, but CTICloud ensures consistent service quality across all providers.

Q: Can I connect my existing cloud resources to CTICloud?

A: Yes. If your infrastructure is on the same cloud provider as your CTICloud region (e.g., both on AWS), you can benefit from in-network connectivity, reduced latency, and potentially lower data transfer costs. Contact your account manager to discuss VPC peering or private connectivity options.

Region Status and Support

Status Pages

Monitor real-time status for each region:

• Global Status: https://status.cticloud.cn

Next Steps

1. Evaluate your requirements - Determine which region best meets your needs
2. Contact sales - Discuss region selection with your account manager
3. Plan your deployment - Review technical requirements and compliance needs
4. Test your integration - Use the appropriate regional API endpoint
5. Monitor performance - Track latency and voice quality metrics

Need Help Choosing a Region?

Contact our solutions team at [email protected] or speak with your account manager for personalized guidance on region selection.

Last Updated: January 2025