Specifications

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Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Chapter 6 Configuring VoIP
Configure Voice Ports
Verifying Your Configuration
You can check the validity of your voice port configuration by performing the
following tasks:
• Pick up the handset of an attached telephony device and listen for a dial tone.
• Check for DTMF detection. If the dial tone stops when you dial a digit, the
voice port is configured properly.
• Use the show voice-port command to verify that the data configured is
correct.
Step 8
Specify a terminating impedance for an E&M
voice port. The impedance value selected
must match the specifications from the
telephony system to which this voice port is
connected.
Required
impedance {600c | 600r | 900c |
complex1 | complex2}
Step 9
Specify the private line auto ringdown
(PLAR) connection if this voice port is used
for a PLAR connection. The string value
specifies the destination telephone number.
Optional
connection plar string
Step 10
Specify the threshold (in dB) for on-hold
music. Valid entries are from –70 to –30 dB.
The default is –38 dB.
Optional
music-threshold number
Step 11
Attach descriptive text about this voice port
connection.
Optional
description string
Step 12
Specify that background noise is generated. Optional
comfort-noise
Table 6-5 Commands to Configure E&M Voice Ports (continued)
Task
Required
or Optional Command