Network Info

• 21CN Service Availability and Network Inventory
  • 21CN network inventory datasets FAQs
  • Access to 21CN network inventory datasets
  • Customer Queries
  • Exchange location and Network Inventory
• Broadband Infrastructure
• Cabling Infrastructure
• Interconnect
  • Contracts
    • Complex System Alteration Notification
    • System Alteration Notification
  • Industry Communication Briefings
    • Interconnect Brieifings Archive
      • April 2006 to June 2006
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      • October 2006 to December 2006
      • October 2007 to December 2007
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    • Manuals
      • DSL In Span Handover & PPC Provisioning Manual
      • Frame Relay Interconnection Manuals
      • IFA Operations & Maintenance Manual
      • IFA Provisioning Manual
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      • PSTN Provisioning Manual
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        • Interconnect Switch System
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    • What we offer
    • Wireless LAN