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Install TN464HP/TN2464CP with Echo Cancellation
Issue 10 June 2005 251
4. Type [add | change] ds1 UUCSS and press Enter.
5. On the DS1 Circuit Pack screen, set the Echo Cancellation? field to y.
When set to y, 2 new fields display: EC Direction: and EC Configuration:.
● If you know the echo is coming into the Avaya CMC1 Media Gateway, keep the default
setting for the EC Direction: field of inward.
● If you know that the distant party is hearing echo that originates in the Avaya CMC1
Media Gateway or its line side stations or equipment, set the EC Direction: field to
outward.
● Keep the default setting for the EC Configuration: field of 4. This setting minimizes
extremely strong echo, very hot signals, or excessive clipping or breakup of speech from
a distant party. It reduces speech clipping but may allow slight residual echo or more
background noise.
6. Test the voice quality on a telephone connected through the TN464HP or TN2464CP circuit
packs and known to have echo to see if the echo was eliminated.
add ds1 2b08 Page 1 of 1 SPE B
DS1 CIRCUIT PACK
Location: 02B08 Name: Echo Cancel t23
Bit Rate: 2.048 Line Coding: hdb3
Signaling Mode: CAS
Interconnect: pbx Country Protocol: 1
Interface Companding: mulaw CRC? n
Idle Code: 11111111
Slip Detection? y Near-end CSU Type: other
Echo Cancellation? y
EC Direction: inward
EC Configuration: 1