User's Manual

Cisco High-Density Analog Voice and Fax Network Module
Configuration Tasks
16
Cisco IOS Release 12.2(2)XT and 12.2(8)T
Configuring FXO Supervisory Disconnect Tone Commands
To create a voice class that defines the specific tone or tones to be detected and then apply the voice class
to the voice port, use the following commands beginning in global configuration mode:
Command Purpose
Step 1
Router(config)# voice class dualtone tag
Creates a voice class for defining one tone
detection pattern. The range for the tag number is
from 1 to 10000. The tag number must be unique on
the router.
Step 2
Router(config-voice-class)# freq-pair tone-id
frequency-1 frequency-2
Specifies the two frequencies, in Hz, for a tone to
be detected (or one frequency if a nondual tone is
to be detected). If the tone to be detected contains
only one frequency, enter 0 for frequency-2. The
arguments are as follows:
• tone-id—Ranges from 1 to 16. There is no
default.
• frequency-1 and frequency-2—Ranges from
300 to 3600, or you can enter 0 for
frequency-2. There is no default.
Note Repeat this command for each additional
tone to be specified.
Step 3
Router(config-voice-class)# freq-max-deviation
frequency
Specifies the maximum frequency deviation that
will be detected, in Hz. The frequency argument
ranges from 10 to 125. The default is 10.
Step 4
Router(config-voice-class)# freq-max-power dBmO
Specifies the maximum tone power that will be
detected, in dBmO. The dBmO argument ranges
from 0 to 20. The default is 10.
Step 5
Router(config-voice-class)# freq-min-power dBmO
Specifies the minimum tone power that will be
detected, in dBmO. The dBmO argument ranges
from 10 to 35. The default is 30.
Step 6
Router(config-voice-class)# freq-power-twist dBmO
Specifies the power difference allowed between the
two frequencies, in dBmO. The dBmO argument
ranges from 0 to 15. The default is 6.
Step 7
Router(config-voice-class)# freq-max-delay time
Specifies the timing difference allowed between
the two frequencies, in 10-millisecond increments.
The time argument ranges from 10 to 100 (100 ms
to 1 sec). The default is 20 (200 ms).
Step 8
Router(config-voice-class)# cadence-min-on-time time
Specifies the minimum tone on time that will be
detected, in 10-millisecond increments. The time
argument ranges from 0 to 100 (0 ms to 1 sec).
Step 9
Router(config-voice-class)# cadence-max-off-time time
Specifies the maximum tone off time that will be
detected, in 10-millisecond increments. The time
argument ranges from 0 to 5000 (0 ms to 50 sec).