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Cisco PVDM3-16 Cisco Packet Voice Digital Module Version 3 Cisco PVDM3-16

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Cisco NM-1GE Cisco 800-7726-02 Cisco 1-Port Gigabit Ethernet Network Module

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Cisco WIC-1SHDSL V2 Module 800-23445-01 Cisco 73-8834-04 Cisco WIC-1SHDSL-V2

Cisco 2911 or 2921 & 2951 Rack Mount Brackets or Cisco 2951 ACS-2900-RM-19