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Security, Compliance & Data Residency

This chapter covers multi-region compliance requirements including India DoT/TRAI toll bypass regulations, EMEA GDPR data residency, security architecture, and disaster recovery planning.

Chapter Overview

Sections

4.1 Data Residency ->
Complete compliance and security architecture including data residency strategy, India DoT/TRAI compliance, EMEA GDPR compliance, security controls, audit requirements, and disaster recovery

4.2 Security Architecture ->
Zero Trust security model, encryption standards, access controls, identity management, security monitoring

4.3 India DoT/TRAI Compliance ->
Toll bypass prevention, Local Gateway requirements, Zone/Edge configuration, telecom circle mapping, ITN number exemptions, compliance validation procedures

4.4 EMEA GDPR Compliance ->
GDPR data residency, UK post-Brexit requirements, German BSI C5 certification, privacy controls, data subject rights

4.5 Audit & Monitoring ->
Compliance auditing, security logging, threat detection, incident response, regulatory reporting

4.6 Disaster Recovery ->
Business continuity planning, failover procedures, data backup, recovery time objectives

Regional Compliance Summary

India - DoT/TRAI Toll Bypass Regulations

Critical Requirement: PSTN calls must egress from the user's local telecom circle when using geographic DIDs.

Compliance Solution: - Local Gateway deployment per telecom circle - Zone/Edge configuration for geographic DID routing - ITN numbers for remote/WFH users (exempt from toll bypass)

India PSTN Options:

+----------------+---------+-----------+----------+-------------+
| Option         | LGW HW  | Zone/Edge | Geo DIDs | Best For    |
+----------------+---------+-----------+----------+-------------+
| Local Gateway  | YES     | REQUIRED  | YES      | Office      |
| CCPP (Tata)    | NO      | REQUIRED  | YES      | Office      |
| ITN Numbers    | NO      | NOT REQ   | NO       | WFH/Remote  |
+----------------+---------+-----------+----------+-------------+

Key Insight: Zone/Edge is required ONLY for geographic DIDs (+91-22-XXXX, +91-80-XXXX, etc.). ITN numbers (9XXXXXXXXX) are exempt from toll bypass regulations.

EMEA - GDPR Data Residency

Critical Requirement: Customer data must remain within the EU/UK region.

Compliance Solution: - UK Calling Region (London data center) for UK locations - EU Calling Region (Frankfurt data center) for EU locations - Cloud Connected PSTN via regional providers (IntelePeer UK/EU)

Key Difference from India:

+----------------------------------------------------------------+
| INDIA COMPLIANCE = PSTN Routing Regulations (Toll Bypass)     |
| EMEA COMPLIANCE  = Data Residency & Privacy (GDPR)            |
|                                                                |
| [!]️ UK/EU have NO regulatory requirement for Local Gateway     |
| [!]️ CCPP is fully compliant for all EMEA locations             |
| [!]️ LGW in EMEA is a BUSINESS choice, not regulatory           |
+----------------------------------------------------------------+

Americas - Standard Enterprise Policies

Requirements: Standard enterprise security and privacy policies.

Compliance Solution: - US Calling Region for data residency - Cloud Connected PSTN via IntelePeer US - SOC 2 Type II compliance for enterprise security

Security Architecture

Zero Trust Principles

  1. Identity Verification: MFA for all admin access, SSO integration
  2. Least Privilege: Role-based access control (RBAC)
  3. Encryption: TLS 1.2+ for all signaling, SRTP for media
  4. Continuous Monitoring: Real-time security analytics
  5. Network Segmentation: VLAN separation for voice traffic

Compliance Certifications

Region Certifications
Global SOC 2 Type II, ISO 27001, ISO 27017, ISO 27018
India MEITY empanelment (in progress)
UK UK GDPR, Ofcom
EU EU GDPR, EU Cloud Code of Conduct (Level 3), BSI C5
Americas FedRAMP Moderate, HIPAA (for healthcare)

Disaster Recovery Strategy

RTO/RPO Objectives

Service RTO RPO Recovery Strategy
Webex Calling <4 hours 0 Active-Active cloud redundancy
Contact Center <8 hours <1 hour Regional failover
Configuration <2 hours <15 min Daily backups to cloud storage

Data Centers

Region Primary DC Backup DC Failover Type
APAC Mumbai + Chennai Tokyo Automatic
UK London Manchester Automatic
EU Frankfurt Amsterdam Automatic
Americas US East US West Automatic

Compliance Validation

Before go-live:

  • India toll bypass compliance validated per telecom circle
  • EMEA data residency confirmed (UK/EU regions)
  • Security controls tested and documented
  • Audit logging enabled and validated
  • Disaster recovery procedures tested
  • Regulatory attestations obtained

Next Steps

  1. Review DNS & Network for network architecture
  2. Review Implementation for compliance configuration procedures
  3. Review Appendix D for India telecom circle reference
  4. Review Appendix E for EMEA certification details