FeaturesSupports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels)All versions support CO, TIE, DID and OPS (Off – Premises Stations) port types using the robbed signal protocol, proprietary bit-oriented signaling, (BOS) 24th channel signaling protocol, and the DMI-BOS 24th channel signaling protocolAll versions also support ISDN-PRI connectivityTN464E and later provide test jack access to the DS1 or E1 line and support the 120A Integrated CSUIncludes RefurbishedLibraryAvaya Definity Maintenance Server R Vol I and II,III.pdf
