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Communication Manager Maintenance-Object Repair Procedures
2382 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
TN2242 Serviceability
Hardware Connections
This circuit pack can be:
● Mated to another circuit pack of the same type when interconnecting two Communication
Manager systems
● Directly connected to the TDM network device
● Directly connected to another vendor PBX using ISDN-PRI signaling
Loopbacks
There is no automatic process to signal the remote end to provide loopbacks for testing
purposes. Every loop back to be tested with a single circuit pack must be a local loop back on
the circuit pack.
Remote loopbacks may be possible with the TDM network equipment with appropriate
coordination between BCS Services Technicians and the service technicians of the TDM
equipment (considered a CPE device).
TN464GP/TN2464BP UDS1 Circuit Packs with
Echo Cancellation
The TN464GP and TN2464BP UDS1 circuit packs feature an integrated echo canceller. Echo
cancellation is a Software Right-To-Use feature that can be turned on as needed. Echo
cancellation supports channels carrying voice and is not intended for channels that support
data. The TN464GP/TN2464BP have the capability to detect modem tone and turn off echo
cancellation accordingly for the duration of a data call. Echo cancellation on the TN464GP/
TN2464BP is administrable per channel. The echo cancellation circuitry on a given TN464GP/
TN2464BP is driven by administrable parameters.
The TN464GP/TN2464BP circuit packs are intended for use with ATM, IP, wideband, or other
complex services which are likely to have problems with echo.
Echo cancellation on a TN464GP/TN2464BP is a right-to-use feature that is activated by means
of the License File. Echo cancellation is enabled on the System-Parameters Customer-Options
screen. The Maximum Number of DS1 Boards with Echo Cancellation field on the
System-Parameters Customer-Options screen indicates the number of DS1 boards on which
echo cancellation is activated for a specific customer.