Cisco PA-VXA Series Installation And Configuration Manual page 78

Configuring Voice over IP
To configure voice-port tuning for E&M voice ports, perform the following steps:
Identify the voice port and enter the voice-port configuration mode by using the voice-port command.
Step 1
Step 2 For each of the following parameters, select the appropriate value using the commands indicated:
• Input gain using the input gain command
• Output attenuation using the output attenuation command
Echo cancel coverage using the echo-cancel enable and echo-cancel coverage commands
•
• Nonlinear processing using the non-linear command
Initial digit timeouts using the timeouts initial command
•
Interdigit timeouts using the timeouts interdigit command
•
Timing other than timeouts using the timing clear-wait, timing delay-duration, timing
•
delay-start, timing dial-pulse min-delay, timing digit, timing inter-digit, timing pulse,
timing pulse-inter-digit, timing wink-duration, and timing wink-wait commands
To fine-tune E&M voice ports, use the following commands beginning in privileged EXEC mode:
Command
Step 1
configure terminal
Step 2
voice-port
slot-number/subunit-number/port
Step 3 echo-cancel enable
Step 4 echo-cancel coverage value
Step 5 non-linear
Step 6 timeouts initial seconds
T1/E1 Digital Voice Port Adapter Installation and Configuration
4-28
Chapter 4
Purpose
Enter the global configuration mode.
Identify the voice port you want to configure and enter the
voice-port configuration mode.
Enable echo cancellation of voice that is sent out the interface and
received back on the same interface.
Adjust the size (in milliseconds) of the echo cancel. Acceptable
values are 16, 24, and 32.
Enable nonlinear processing, which shuts off any signal if no
near-end speech is detected. (Nonlinear processing is used with
echo cancellation.)
Specify the number of seconds the system waits for the caller to
input the first digit of the dialed digits. Valid entries for this
command are from 0 to 120.
Configuring the PA-VXA, PA-VXB, and PA-VXC
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