Cisco 4400 Series Interfaces NIM

2-port ISDN BRI S/T NIM Module

2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module

2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module

2-Port Network Interface Module - FXS, FXS-E and DID

Cisco NIM-2T 2-port Serial Wan Interface Card

2-Port Serial WAN Interface card

4-port Network Interface Module - BRI (NT and TE)

4-port ISDN BRI S/T NIM Module

4-port ISDN BRI S/T NIM Module

4-Port Network Interface Module - Ear and Mouth

4-port Network Interface Module - FXO (Universal)

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