Frequently bought together:
Description
CENTRAL OFFICE INTERFACE UNIT The Central Office Interface Unit supports 4 outside (CO/PBX) lines. This card contains a fax branch connection. Loop start trunks only. Supports Caller ID.
CENTRAL OFFICE INTERFACE UNIT The Central Office Interface Unit supports 4 outside (CO/PBX) lines. This card contains a fax branch connection. Loop start trunks only. Supports Caller ID.