User Manual

Cisco High-Density Analog Voice and Fax Network Module
Configuration Tasks
11
Cisco IOS Release 12.2(2)XT and 12.2(8)T
Configuration Tasks
See the following sections for configuration tasks for this feature.
• Configuring Analog FXO and FXS Voice Ports (required)
• Configuring Voice Activity Detection (VAD) (optional)
• Fine-Tuning Analog Voice Ports (optional)
• Verifying Analog Voice-Port Configurations (optional)
Configuring Analog FXO and FXS Voice Ports
To configure basic analog voice port parameters on Cisco 2600 series, Cisco 3640 and
Cisco 3660 routers, use the following commands beginning in global configuration mode:
Command Purpose
Step 1
Router(config)# voice-port slot/subunit/port
Enters voice-port configuration mode.
The arguments are as follows:
• slot—Specifies the number of the router slot
where the voice network module is installed.
• port—Indicates the voice port. See Table 1 on
page 2 for valid entries.
• subunit—Specifies the location of the
Cisco High-Density Analog Voice/Fax Netwo
rk Module (NM-HDA). The valid entry is 0.
Note A slash must be entered between
arguments.
Valid entries vary by router platform; enter the
show voice port summary command for
available values.
Step 2
FXO or FXS
Router(config-voiceport)# signal {loop-start |
ground-start}
Selects the access signaling type to match that of
the telephony connection you are making. The
keywords are as follows:
• loop-start—(default) Uses a closed circuit to
indicate off-hook status; used for residential
loops.
• ground-start—Uses ground and current
detectors; preferred for PBXs and trunks.
Step 3
Router(config-voiceport)# cptone locale
Selects the two-letter locale for the voice call
progress tones and other locale-specific parameters
to be used on this voice port.
Cisco routers comply with the ISO 3166 locale
name standards. To see valid choices, enter a
question mark (?) following the cptone command.
The default is us.