TWO-PORT VOICE INTERFACE CARD - BRI (NT AND TE)
TWO-PORT VOICE INTERFACE CARD - FXO (UNIVERSAL)
TWO-PORT VOICE INTERFACE CARD - FXS (UNIVERSAL)
FOUR-PORT VOICE INTERFACE CARD - FXO (UNIVERSAL)
TWO-PORT VOICE INTERFACE CARD- FXS AND DID
FOUR-PORT VOICE INTERFACE CARD - FXS AND DID
2-PORT 2ND GEN MULTI TRUNK VOICE/WAN INT CARD-G703
1PORT 2ND GEN MULTIFLEX TRUNK VOICE/WAN CARD-T1/E1