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Cisco IOS Voice Command Reference
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About Cisco IOS Software Documentation
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Using Cisco IOS Software
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New and Modified Commands
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Commands: A
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Commands: B
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Commands: cache --> call fallback jitter-probe num-packets
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Commands: call fallback jitter-probe precedence --> ces connect
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Commands: ces initial-delay --> codec preference
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Commands: comfort-noise --> customer-id
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Commands: default (MGCP profile) through direct-inward-dial
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Commands: E
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Commands: F
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Commands: G
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Commands: H
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Commands: I
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Commands: K
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Commands: L
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Commands: M
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Commands: N
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Commands: O
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Commands: P through Q
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Commands: R
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Commands: SCCP through sgcp tse payload
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Commands: show aal2 profile through show controllers timeslots
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Commands: show controllers voice through show mgcp
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Commands: show mgcp connection through show ss7 sm session
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Commands: show ss7 sm set through shutdown (voice-port)
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Commands: signal through suppress
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Commands: T
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Commands: U
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Commands: V through W
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Commands: Z
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Table Of Contents
Cisco IOS Voice Commands:
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This chapter contains commands to configure and maintain Cisco IOS voice applications. The commands are presented in alphabetical order. Some commands required for configuring voice may be found in other Cisco IOS command references. Use the command reference master index or search online to find these commands.
For detailed information on how to configure these applications and features, refer to the Cisco IOS Voice Configuration Guide.
name (dial peer cor custom)
See the Cisco IOS Dial Technologies Command Reference, Release 12.3 for a description of the name (dial peer cor custom) command.
name (ephone-dn)
To configure a username associated with a directory number, use the name command in ephone-dn configuration mode. To disable a username associated with a directory number, use the no form of this command.
name name
no name name
Syntax Description
Defaults
No default behavior or values
Command Modes
Ephone-dn configuration
Command History
Usage Guidelines
This command configures a username associated with a directory number. The name argument is used to provide caller ID for calls originated on the Cisco IP phone directory number. This command is also used to generate directory information for an XML directory accessible from a Cisco IP phone directories button.
Note
You must follow the pattern specified in the directory command in telephony-service configuration mode to associate the username with the directory. The pattern for surnames in the directory is set either with first-name-first or with last-name-first.
Examples
The following example configures the username John Smith with the pattern first-name-first:
Router(config)# ephone-dn 1Router(config-ephone-dn) name John SmithThe following example configures the username Jane Smith with the pattern last-name-first:
Router(config)# ephone-dn 1Router(config-ephone-dn) name Smith, JaneRelated Commands
neighbor (annex g)
To configure the neighboring border elements (BEs) that interact with the local BE for the purpose of obtaining addressing information and aiding in address resolution, enter the neighbor command in Annex G configuration mode. To reset the default value, use the no form of this command.
neighbor ip-address
no neighbor
Syntax Description
Defaults
No default behavior or values
Command Modes
Annex G configuration
Command History
Examples
The following example configures a neighboring BE that has an IP address and border element ID:
Router(config)# call-router h323-annexg be20Router(config-annexg)# neighbor 121.90.10.42Router(config-annexg-neigh)# id be30Router(config-annexg-neigh)# exitRelated Commands
neighbor (tgrep)
To create a TGREP session with another device, use the neighbor command in TGREP configuration mode. To disable a TRIP connection, use the no form of this command.
neighbor ip_address
no neighbor ip_address
Syntax Description
Defaults
No neighboring devices are defined
Command Modes
TGREP configuration
Command History
Examples
The following example shows that the gateway with the IP address 192.116.56.10 is defined as a neighbor for ITAD 1234:
Router(config)# tgrep local-itad 1234Router(config-tgrep)# neighbor 192.116.56.10Related Commands
network-clock base-rate
To configure the network clock base rate for universal I/O serial ports 0 and 1, use the network-clock base-rate command in global configuration mode. To disable the current network clock base rate, use the no form of this command.
network-clock base-rate {56k | 64k}
no network-clock base-rate {56k | 64k}
Syntax Description
Defaults
56 kbps
Command Modes
Global configuration
Command History
Usage Guidelines
This command applies to Voice over Frame Relay and Voice over ATM on the Cisco MC3810.
Examples
The following example sets the network clock base rate to 64 kbps:
network-clock base-rate 64kRelated Commands
network-clock-participate
To allow the ports on a specified network module or voice/WAN interface card (VWIC) to use the network clock for timing, use the network-clock-participate command in global configuration mode. To restrict the device to use only its own clock signals, use the no form of this command.
network-clock-participate [slot slot-number | wic wic-slot | aim aim-slot-number]
no network-clock-participate [nm slot | wic wic-slot]
Syntax Description
Defaults
No network clocking is enabled, and interfaces are restricted to using the clocking generated on their own modules.
Command Modes
Global configuration
Command History
Usage Guidelines
This command is used for ATM segmentation and reassembly or digital signal processing and Cisco 3660, Cisco 3725, and Cisco 3745 routers.
This command applies to any network module with T1/E1 controllers to provide clocks from a central source (MIX module for the Cisco 3660) to the network module and to the port on the network module. Then that port can be selected as the clock source with the network-clock-select command to supply clock to other ports or network modules that choose to participate in network clocking with the network-clock-participate command. This command synchronizes the clocks for two ports.
On the Cisco 3700 series, you must use the network-clock-participate command and either the wic wic-slot keyword and argument or the slot slot-number keyword and argument.
Note
Note
Examples
The following example configures the network module in slot 5 to participate in network clocking on a Cisco 3660 with a MIX module:
network-clock-participate slot 5network-clock-select 1 e1The following example on a Cisco 3700 series router specifies that the AIM participates in network clocking and selects port E1 0/1 to provide the clock signals.
Router(config)# network-clock-participate wic 0Router(config)# network-clock-participate aim 0Router(config)# network-clock-select 2 E1 0/1The following example on a Cisco 3660 specifies the slot number that participates in network clocking and selects port E1 5/0:
Router(config)# network-clock-participate slot 5Router(config)# network-clock-select 1 E1 5/0Related Commands
network-clock-select
To name a source to provide timing for the network clock and to specify the selection priority for this clock source, use the network-clock-select command in global configuration mode. To cancel the network clock selection, use the no form of this command.
Cisco 2600 Series and Cisco 3660 with MIX Module
network-clock-select priority {t1 | e1} slot/port
no network-clock-select priority {t1 | e1} slot/port
Cisco MC3810
network-clock-select priority {serial 0 | system | bvm | controller}
no network-clock-select priority {serial 0 | system | bvm | controller}
Syntax Description
Defaults
Cisco 2600 series and Cisco 2600XM
The network clock source is the Advanced Integration Module (AIM) phase-locked loop (PLL) with priority 5, which indicates that the network clock is in free running mode.
Cisco 3660, Cisco 3725, and Cisco 3745
The network clock source is the backplane PLL with priority 9, which indicates that the network clock is in free running mode.
Cisco MC3810
No network clock source is specified.
Note
Command Modes
Global configuration
Command History
Usage Guidelines
When an active clock source fails, the system chooses the next lower priority clock source specified by this command. When a higher-priority clock becomes available, the system automatically reselects the higher-priority clock source.
Cisco 2600 series, Cisco 3660, and Cisco 3700 series
This command is used on Cisco 2600 series and Cisco 2600XM with AIMs installed or on the Cisco 3660, Cisco 3725, or Cisco 3745 with Multiservice Interchange (MIX) modules installed. This command names a controller to provide clocking signals to the backplane, which then provides the names to all the network modules that are participating in network clocking.
Cisco MC3810
This command applies to Voice over Frame Relay, Voice over ATM, and Voice over HDLC on the Cisco MC3810. Use the network-clock-select command to establish the clock-selection priority when there are multiple sources of line (network) clocking in a Cisco MC3810. Possible sources of line clocking for the Cisco MC3810 are the BRI voice module (BVM), the multiflex trunk module (MFT), and a serial port configured for clock rate line.
Note
Examples
Cisco 2600 series, Cisco 3660, and Cisco 3700 series
The following example shows how to select the controller in slot 5, port 1, to provide the clock at priority 3 on a Cisco 2600 series, Cisco 2600XM, Cisco 3660, Cisco 3725, or Cisco 3745:
network-clock-select 3 t1 5/1Cisco MC3810
The following example sets the priority of four network clock sources. When the clock source with the highest priority (controller T1 0) fails, the Cisco MC3810 switches the clock source to the second highest priority (controller T1 1).
network-clock-select 1 T1 0network-clock-select 2 T1 1network-clock-select 3 serial 0network-clock-select 4 systemThe following example sets a possible clock selection priority in a Cisco MC3810 with a BRI voice module (BVM) installed:
network-clock-select 1 T1 0 network-clock-select 2 bvm network-clock-select 3 serial 0 network-clock-select 4 systemRelated Commands
network-clock-switch
To configure the switch delay time to the next priority network clock source when the current network clock source fails, use the network-clock-switch command in global configuration mode. To cancel the network clock delay time selection, use the no form of this command.
network-clock-switch [switch-delay | never] [restore-delay | never]
no network-clock-switch
Syntax Description
Defaults
10 seconds
Command Modes
Global configuration
Command History
Usage Guidelines
This command applies to Voice over Frame Relay and Voice over ATM on the Cisco MC3810.
Examples
The following example switches the network clock source after 20 seconds and sets the delay time before the current network clock source recovers to 20 seconds:
network-clock-switch 20 20Related Commands
network-clock-select
Uses the network clock source to provide timing to the system backplane PCM bus.
network-locale
To set the definition of the tones and cadences on the Cisco IP Phone 7940 and Cisco IP Phone 7960 for a specific geographic area, use the network-locale command in telephony-service configuration mode. To disable selection of a code, use the no form of this command.
network-locale locale-code
no network-locale locale-code
Syntax Description
locale-code
The following ISO-3166 codes are valid entries:
•
•
•
•
•
Defaults
The default country code is US (United States).
Command Modes
Telephony-service configuration
Command History
12.2(11)YT
This command was introduced.
12.2(15)T
This command was integrated into Cisco IOS Release 12.2(15)T.
Usage Guidelines
Use this command with Cisco IOS Telephony Service (ITS) V2.1 or a later version.
The show telephony-service tftp-bindings command displays the locale-specific call-progress tone files that are accessible to IP phones using TFTP.
Examples
The following example sets tones and cadences for France:
Router(config)# telephony-serviceRouter(config-telephony-service)# network-locale FRRelated Commands
non-linear
To enable nonlinear processing in the echo canceller, use the non-linear command in voice-port configuration mode. To disable nonlinear processing, use the no form of this command.
non-linear
no non-linear
Syntax Description
This command has no arguments or keywords.
Defaults
Enabled
Command Modes
Voice-port configuration
Command History
Usage Guidelines
The function enabled by this command is also generally known as residual echo suppression. This command is associated with the echo canceller operation. The echo-cancel enable command must be enabled for this command to take effect. Use this command to shut off any signal if no near-end speech is detected.
The Cisco G.165 EC is enabled by default with the echo suppressor turned off. The echo suppressor can be turned on only when the default Cisco G.165 EC is used. The default echo suppressor command is still visible when the extended EC is selected, but it does not do anything.
Enabling the non-linear command normally improves performance, although some users might perceive truncation of consonants at the end of sentences when this command is enabled.
Examples
The following example enables nonlinear call processing on the Cisco 3600 series router:
voice-port 1/0/0non-linearThe following example enables nonlinear call processing on the Cisco MC3810:
voice-port 1/1non-linearRelated Commands
echo-cancel enable
Enables the cancellation of voice that is sent out the interface and is received on the same interface.
nsap
To specify the network service access point (NSAP) address for a local video dial peer, use the nsap command in dial-peer configuration mode. To remove any configured NSAP address from the dial peer, use the no form of this command.
nsap nsap-address
no nsap
Syntax Description
Defaults
No NSAP address for a video dial peer is configured
Command Modes
Dial-peer configuration
Command History
12.0(5)XK
This command was introduced for ATM video dial-peer configuration on the Cisco MC3810.
12.0(7)T
This command was integrated into Cisco IOS Release 12.0(9)T.
Usage Guidelines
The address must be unique on the router.
Examples
On a Cisco MC3810, the following example sets up an NSAP address for the local video dial peer designated as 10:
dial-peer video 10 videocodecnsap 47.0091810000000002F26D4901.333333333332.02Related Commands
number (ephone-dn)
To configure a valid number for the Cisco IP phone, use the number command in ephone-dn configuration mode. To disable a number for the Cisco IP phone, use the no form of this command.
number number [secondary number] [no-reg [both | primary]]
no number number [secondary number] [no-reg [both | primary]]
Syntax Description
Defaults
No secondary phone number is associated with the ephone-dn
Command Modes
Ephone-dn configuration
Command History
Usage Guidelines
This command configures a valid number for the Cisco IP phone. The secondary keyword allows you to associate a second telephone number with an ephone-dn so that the Cisco IP phone line can be called by dialing either the main or secondary phone number. The secondary number may contain wildcards; for example, 50.. (number 50 followed by wildcards). The no-reg keyword specifies an E.164 number in the dial peer to not register to the gatekeeper. If you do not specify either both or primary after the no-reg keyword, only the secondary number is not registered.
Examples
The following example sets 5001 as the primary extension number for a Cisco IP phone, and 0 as the secondary number. This allows the telephone number 5001 to act as a regular extension number and also to act as the operator line such that callers who dial 0 are routed to the phone line with extension number 5001.
Router(config)# ephone-dn 1Router(config-ephone-dn)# number 5001 secondary 0The following example sets 5001 as the primary extension number for a Cisco IP phone, and "500." (the number 500 followed by a decimal point) as the secondary number. This allows any calls to extension numbers from range 5000 to 5009 to be routed to extension 5001 if the actual extension number dialed cannot be found. For example, IP phones may be active in the system with lines that correspond to 5001, 5002, 5004, 5005, and 5009. A call to 5003 or 5006 to 5009 would be unable to locate a phone with extensions 5003 or 5006 to 5008, so the call would be routed to extension 5001.
Router(config-ephone-dn)# number 5001 secondary 500.
Related Commands
numbering-type
To match on a number type for a dial-peer call leg, use the numbering-type command in dial-peer configuration mode. To remove the numbering type for a dial-peer call leg, use the no form of this command.
numbering-type {international | abbreviated | national | network | reserved | subscriber | unknown}
no numbering-type {international | abbreviated | national | network | reserved | subscriber | unknown}
Syntax Description
Defaults
No default behaviors or values
Command Modes
Dial-peer configuration
Command History
Usage Guidelines
This command is supported for POTS, VoIP, VoFR, and VoATM dial peers. The numbering type options are implemented as defined by the ITU Q.931 specification.
Examples
The following example shows how to configure a POTS dial peer for network usage:
dial-peer voice 100 potsnumbering-type networkThe following example shows how to configure a VoIP dial peer for subscriber usage:
dial-peer voice 200 voipnumbering-type subscriberRelated Commands
num-exp
To define how to expand a telephone extension number into a particular destination pattern, use the num-exp command in global configuration mode. To cancel the configured number expansion, use the no form of this command.
num-exp extension-number expanded-number
no num-exp extension-number
Syntax Description
Defaults
No number expansion is defined
Command Modes
Global configuration
Command History
Usage Guidelines
Use this command to define how to expand a particular set of numbers (for example, a telephone extension number) into a particular destination pattern. With this command, you can bind specific extensions and expanded numbers together by explicitly defining each number, or you can define extensions and expanded numbers using variables. You can also use this command to convert seven-digit numbers to numbers containing less than seven digits.
Use a period (.) as a variable or wildcard, representing a single number. Use a separate period for each number that you want to represent with a wildcard—for example, if you want to replace four numbers in an extension with wildcards, type in four periods.
Examples
The following example expands the extension number 55541 to the number 14085555541:
num-exp 55541 14085555541The following example expands all five-digit extensions beginning with 5 such that the 5 is replaced with the digits 1408555 at the beginning of the extension number:
num-exp 5.... 1408555....Related Commands
