Genuine Cisco 2-port FXO Network Interface Module NIM-2FXO

Cisco Genuine NIM-2FXO 2 Port FXO NIM Network Interface Module

Cisco NIM-2FXS/4FXO 2-Port FXS 4-Port FXO Network Interface Module NOS

Cisco VIC-2FXO 2-Port FXO Voice Network Module

Cisco NIM-4FXO 4-port Network Interface Module - FXO (Universal)

Genuine Cisco VIC-2FXO-M1 2-Port Voice Interface Card Module

CISCO NIM-2FXS NETWORK ETHERNET INTERFACE MODULE

Cisco NIM-4FXS 4-Port FXS Network Interface Module