FeaturesCircuit-pack-level, administrable A- or Mu-Law compandingCRC-4 generation and checking (E1 only)Stratum-3 clock capabilityISDN-PRI T1 or E1 connectivityLine-out (LO) and line-in (LI) signal leads for unpolarized, balanced pairsSupport for CO, TIE, DID, and off-premises station (OPS) port types that use any of the following protocols: – robbed-bit signaling protocol, – proprietary bit-oriented signaling (BOS) 24th-channel signaling protocol, or – DMI-BOS 24th-channel signaling protocolSupport for Russian incoming ANISupport for universal, digital, signal level-1equipment in wideband ISDN-PRI applicationsTest-jack access to the DS1 or E1 line, and support of the 120A integrated channel-service unit (ICSU) moduleSupport for the enhanced maintenance capabilities of the ICSU. These circuit packs can communicate with Avaya Interactive Response SystemDownloadable firmwareSupport for echo cancellationIncludes RefurbishedLibraryAvaya Definity Maintenance Server R Vol I and II,III.pdf
