Cisco Linecards & Modules

4-Port ISDN-BRI with NT-1 Network Module

One-port ATM OC-3 Multimode NM for 2691,3600,3725

Dual-Port 60 Channel E1 Voice/Fax Network Module

IP Communications High-Density Digital Voice NM with 1 T1/E1

Single-Port 24 Channel T1 Voice/Fax Network Module

Single-Port 24 Enhanced Channel T1 Voice/Fax Network Module

Single-Port 30 Channel E1 Voice/Fax Network Module

One-slot IP Communications Voice/Fax Network Module

Cisco Unity Express Network Module Enhanced Capacity