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

Cisco NIM-4FXO 4-Port Network Interface Module

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

Cisco NIM-4FXS 4-port Network Interface Module

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

Cisco NIM-4FXO 4-Port Network Interface Module

CISCO NIM-2FXS/4FXO 2-Port FXS 4-Port FXO ISR Router Voice Fax Interface Module

Cisco NIM-4FXS 4-Port Network Interface Module - FXS, FXS-E and DID