2-PORT CHANNELIZED E1/T1/ISDN-PRI NETWORK MODULE
CISCO UNITY EXPRES NETWORK MODULE ENH 8 PORTS INCL
FOUR-PORT VOICE INTERFACE CARD - FXS AND DID
TWO-PORT VOICE INTERFACE CARD- FXS AND DID
FOUR-PORT VOICE INTERFACE CARD - FXO (UNIVERSAL)
TWO-PORT VOICE INTERFACE CARD - FXS (UNIVERSAL)