Weed Eater 2600 Verifying Analog Voice-PortConfigurations, Command Syntax, Purpose, Platform

Cisco High-Density Analog Voice and Fax Network Module

Configuration Tasks

	Command	Purpose
Step 2
	Router(config-voiceport)# output attenuation value	Specifies the amount of attenuation in decibels at
		the transmit side of the interface, decreasing the
		signal. A system-wide loss plan can be
		implemented using the input gain and output
		attenuation commands.
		The default value for this command assumes that a
		standard transmission loss plan is in effect,
		meaning that normally there must be –6 dB
		attenuation between phones.
		The value argument is any integer from –6 to 14.
		The default is 0.
Step 3
	Router(config-voiceport)# impedance { 600r complex1 }	Specifies the terminating impedance of a voice
		port interface, which needs to match the
		specifications from the specific telephony system
		to which it is connected.
		• 600r—Specifies 600 ohms real.
		• complex1—Specifies Complex 1.
		The default is 600r.

Verifying Analog Voice-Port Configurations

After configuring the voice ports on your router, perform the following steps to verify proper operation:

Step 1 Pick up the handset of an attached telephony device and check for a dial tone.

Step 2 If you have dial tone, check for DTMF detection. If the dial tone stops when you dial a digit, then the voice port is most likely configured properly.

Step 3 To identify port numbers of voice interfaces installed in your router, use the show voice port summary command. For examples of the output, see the “Analog FXS Voice Port Example” section on page 30.

Step 4 To verify voice-port parameter settings, use the show voice port command with the appropriate syntax from Table 3. For sample output, see the “Analog FXO Voice Port Example” section on page 29.

Table 3 Show Analog Voice Port Command Syntax

Platform	Command Syntax
Cisco 2600 series	show voice port [slot-number/subunit-number/port]
Cisco 3640
Cisco 3660

Step 5 To display voice-channel configuration information for all DSP channels, use the show voice dsp

command.

Router# show voice dsp

Cisco IOS Release 12.2(2)XT and 12.2(8)T

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