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Aspire Software Manual Features ◆ 679
Enhanced Echo Adjustment
With software 1.18 or higher and VOIPU firmware 3.2 or later, the Echo Canceller option has been
enhanced. This enhancement supports the following features:
● Supports long echo tail size (max. 128 msec)
● Adds adjustment parameters for echo cancellation
System Data Changes
With enhanced echo canceller, additional programs have been added and the settings of others have
changed. With enhanced echo canceller, following system data is changed:
● Added settings for long echo tail size (Program 84-06-12/13/14)
● Changed settings:
84-01-24/26/27/28/29 settings are moved to 84-01-60 (H.323 Trunks)
84-11-20/21/22/23/24/25 settings are moved to 84-11-29 (DtermIP)
84-12-20/21/22/23/24/25 settings are moved to 84-12-29 (H.323 Phones)
For each of the IP devices above, select an echo canceller type (84-01-60, 84-11-29, 84-12-29). The
options are:
● 0: Automatic If the call is analog (e.g. COIU or TLIU 2-wire) then this selects the echo
canceller profile configured in Program 84-17 Type 4 (“Analog Path
Setting”). Any other call selects the echo canceller profile configured in
Program 84-17 Type 5 (“Digital Path Setting”). Note that the TLIU 4-wire
is treated as digital.
● 1: Type 1 This selects the echo canceller profile configured in Program 84-17 Type 1.
● 2: Type 2 This selects the echo canceller profile configured in Program 84-17 Type 2.
● 3: Type 3 This selects the echo canceller profile configured in Program 84-17 Type 3.
Note 1. PC programming software does not support the above changes. Please use WebPro or
keyset programming for these settings.
Note 2. For software prior to 1.18 or with VOIPU firmware prior to 3.2, please refer to “Echo
Adjustment (page 669) for the echo adjustment procedure.
Echo Canceller Feature of the VOIPU
Echo canceler of VOIPU support following features:
● Supports 8/16/32/64/128ms echo tail size
● NLP (Nonlinear processing)
Echo Tail Size
Longer echo tail size increases the echo cancellation ability to echo delay.
If you use above 32msec echo tail size, set Program 84-06-12 (long tail echo mode) to ON, then
select the codec type and echo tail size using Program 84-06-13/14.