Configuring AMWI and VMWI
First Published: November 19, 2010
This module describes the configurable audible message waiting indication/visible message waiting indication (AMWI/VMWI) feature for Skinny Client Control Protocol (SCCP)-controlled Analog Ports. This feature provides users with the option to enable one message waiting indication (MWI): audible, visible, or both.
This feature is supported for analog endpoints that are connected to Foreign Exchange Station (FXS) ports or a Cisco VG224 Analog Phone Gateway and controlled by a Cisco call-control system, such as a Cisco Unified Communications Manager (Cisco Unified CM) or a Cisco Unified Communications Manager Express (Cisco Unified CME).
Finding Feature Information in This Module
Your Cisco IOS software release may not support all of the features documented in this module. To reach links to specific feature documentation in this module and to see a list of the releases in which each feature is supported, use the “Feature Information for Configurable AMWI and VMWI” section.
Finding Support Information for Platforms and Cisco IOS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Prerequisites for Configurable AMWI and VMWI
Cisco IOS Gateway
Information About Configurable AMWI and VMWI
To enable SCCP supplementary features on analog phones connected to FXS ports on a Cisco voice gateway, you should understand the following concepts:
Feature Summary
Table 1 contains information about SCCP-based Configurable AMWI and VMWI on Cisco Voice Gateways.
Table 1 Configurable AMWI and VMWI
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How Phone User Accesses Feature
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Configuration on Call-Control System
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Configurable AMWI and VMWI
Allows users to configure AMWI only, VMWI only, or both. |
When a voicemail is available, the user goes offhook to hear a special AMWI tone or goes onhook to see an MWI light (when the phone is equipped with one). |
No configuration tasks required on your Cisco call-control system. |
Configurable AMWI and VMWI
MWI is used to remind you that there is a voicemail message waiting. When a voicemail is available, the phone receives AMWI, which plays a special AMWI tone when you go offhook. A VMWI, which turns on an MWI light, is also activated whenthe phone is equipped with one. No configuration tasks are required to enable MWI feature for analog phones because it plays both AMWI and VMWI by default. However, you can configure your phone to have VMWI or AMWI only.
When configuring MWI, you need to make sure that there are no existing voicemail messages. Configuring MWI while the phone still has voicemail messages is not supported by this feature. You need to clear all voicemail messages and make sure VMWI/AMWI is not active before configuring the MWI setting.
The two types of VMWI, the frequency-shift keying message and DC voltage, are both supported by this feature.
How to Configure AMWI and VMWI
Note This document does not contain details about configuring Cisco Unified Communications Manager or Cisco Unified CME. See the documentation for these products for installation and configuration instructions.
To enable any of the MWI options, perform the following steps:
SUMMARY STEPS
1. enable
2. configure terminal
3. stcapp supplementary-services
4. port port-number
5. mwi { audible | visible | both }
6. end
DETAILED STEPS
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Step 1 |
enable
Router> enable |
Enables privileged EXEC mode.
- Enter your password if prompted.
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Step 2 |
configure terminal
Router# configure terminal |
Enters global configuration mode. |
Step 3 |
stcapp supplementary-services
Router(config)# stcapp supplementary-services
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Enters supplementary-service configuration mode. |
Step 4 |
port port-number
Router(config-stcapp-suppl-serv)#port 2/2
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Specifies analog FXS voice port on which STCAPP supplementary-service features are to be supported. • port-number —Voice port number. Range is 2/0 to 2/23. |
Step 5 |
mwi { audible | visible | both }
Router(config-stcapp-suppl-serv-port)#mwi audible |
Enables mwi as audible only (AMWI), visible only (VMWI), or both (default configuration).
- audible —AMWI is enabled.
- visible —VMWI is enabled.
- both —Default configuration. Both AMWI and VMWI are enabled.
Note The current configuration is that MWI (AMWI/VMWI) is automatically turned on when the port is configured in SCCP, MWI cannot be turned off in SCCP. |
Step 6 |
end
Router(config-stcapp-suppl-serv-port)#end
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Exits configuration mode and returns to privileged EXEC mode. |
Configuration Examples for Configurable AMWI and VMWI
This section provides the following configuration examples:
Example: Configuring AMWI and VMWI
The following example shows how to configure AMWI and VMWI on specific analog FXS voice ports on which STCAPP supplementary-service features are supported:
Router# show running-config
Building configuration...
Current configuration : 5518 bytes
! Last configuration change at 17:02:32 PST Sun Feb 28 1993
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
no service password-encryption
logging buffered 20000000
stcapp supplementary-services
interface FastEthernet0/0
ip address 1.5.42.80 255.255.255.0
interface FastEthernet0/1
ip address 1.4.197.150 255.255.255.0
ip default-gateway 1.5.0.1
ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
timeouts ringing infinity
timeouts ringing infinity
timeouts ringing infinity
sccp local FastEthernet0/0
sccp ccm 1.5.42.40 identifier 40 version 6.0
associate ccm 40 priority 1
exception data-corruption buffer truncate
Router#
Example: How to Check the Current MWI Configuration
Users can use the show command to check the current MWI configuration.
Router# show stcapp device voice-port 2/2
Device Name: AN0C863949F6402
Device Security Mode : None
Dialtone after remote onhook feature: activated
Busytone after remote onhook feature: not activated
Last Event: STCAPP_DC_EV_DEVICE_SET_LAMP_PROCESS_DC_VMWI
CWT Repetition Interval: 0 second(s) (no repetition)
Router#
Additional References
The following sections provide references related to SCCP analog phone support for FXS ports on the Cisco voice gateway.
Technical Assistance
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http://www.cisco.com/techsupport |
Feature Information for Configurable AMWI and VMWI
Table 2 lists the features in this module and provides links to specific configuration information. Only features that were introduced or modified in Cisco IOS Release 15.1(3)T or a later release appear in the table.
For information on a feature in this technology that is not documented here, see the “Supplementary Services Features Roadmap” section.
Not all commands may be available in your Cisco IOS software release. For release information about a specific command, see the command reference documentation.
Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Note Table 2 lists only the Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS software release train also support that feature.
Table 2 Feature Information for Configurable AMWI and VMWI
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Configurable AMWI and VMWI |
15.1(3)T |
Allows users to configure AMWI only, VMWI only, or both. MWI is used to remind the user that there is a voicemail message waiting. When a voicemail is available, the phone receives an AMWI that plays a special AMWI tone when the user goes offhook or a VMWI that turns on an MWI light (when the phone is equipped with one) when the user goes onhook. The following sections provide information about this feature:
The following commands were introduced or modified: mwi (supplementary-service). |