- Supplementary Services Feature Roadmap
- Overview of Supplementary Services for FXS Ports on Cisco IOS Voice Gateways
- Configuring FXS Ports for Basic Calls
- Enabling Fallback to Cisco Unified SRST for Call Control on Analog (FXS) Ports
- Configuring Supplementary Features
- Configuring Feature Mode
- Configuring CallBack on Busy for Analog Phones
- Configuring CallBack on No Answer
- Configuring Call Waiting Tone Cadence
- Configuring AMWI and VMWI
- Configuring DC Voltage Based VMWI for SCCP Controlled Analog Ports
- Configuring Call Hold/Resume for Shared Lines for Analog Ports
- Configuring cBarge and Privacy for Shared Lines
- Configuring Single Number Reach for Analog Phones
- Media Renegotiation
- Configuring DTMF Relay, Fax Relay and Modem Relay
- Configuring Secure Signaling and Media Encryption for the Cisco VG224
- Configuring Secure SCCP Analog Endpoints over TLS with CM
- Implementing Enhanced Serviceability
- Contents
- Prerequisites for Enhanced Serviceability
- Information About Enhanced Serviceability
- How to Configure Enhanced Serviceability Features on Analog Voice Gateways
- Performing Analog FXS Line Measurements on Voice Ports Using Vinetic PEB3304HL Chipsets
- DETAILED STEPS
- Performing Analog FXS Line Measurements on Voice Ports Using Pro SLIC si3241 Chipsets
- Performing Connectivity Checks on a Single Analog FXS Port
- Performing Connectivity Checks on All Analog FXS Ports in a Router
Implementing Enhanced Serviceability
First Published: November 19, 2010
This module describes how to perform line tests and connectivity checks on analog Foreign Exchange Station (FXS) voice ports using the Enhanced Serviceability features.
The Enhanced Serviceability feature provides analog FXS line measurement support for analog voice ports that use Infineon Vinetic PEB3304HL or Silicon Lab Pro SLIC si3241 chipset. The analog FXS line measurements supported by this feature include:
- AC/DC line voltage
- AC/DC foreign voltage
- AC/DC transversal and longitudinal current
- AC/DC current
- AC ring voltage
- AC ring current
- Loop resistance
- REN detection
- Receiver offhook detection
- Analog phone detection
The Enhanced Serviceability feature also provides digital signal processor (DSP)-level signaling and media connectivity checks of analog FXS voice ports. The feature enables troubleshooting of large deployments by cyclically establishing test calls to each port in the gateway.
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 Enhanced Serviceability” 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.
Contents
Prerequisites for Enhanced Serviceability
- Cisco IOS Release 15.1(3)T or a later version.
- The Cisco voice gateway (VG) is set up and configured for operation. For information, see the appropriate Cisco configuration documentation.
- The analog FXS voice ports are set up and configured for operation. For information, see Cisco IOS Voice Port Configuration Guide.
- The analog FXS voice ports must use the Vinetic chipset version 2.1 from Infineon Technologies or the Pro SLIC Si3241 chipset from Silicon Laboratories.
- Cisco Unified Communications Manager 6.1.2 or a later version.
Information About Enhanced Serviceability
To configure the Cisco voice gateway to implement the enhanced serviceability features, you should understand the following concepts:
- Benefits of Analog FXS Line Measurements
- Benefits of Analog FXS Connectivity Checks
- Supported Gateways, Modules, and Voice Interface Cards
Benefits of Analog FXS Line Measurements
Analog FXS Line Measurements are a set of tests used to monitor and diagnose a variety of failures in voice gateways. These tests involve measurements of resistance, capacitance, leakage, and interfering currents and voltages that reduce network quality.
Among the different types of line measurements that can be performed on analog FXS lines include the following:
- AC/DC line voltage – measures the voltage generated by the chip on tip-ring, tip-to-ground, and ring-to-ground
- AC/DC foreign voltage – it measures the unknown/dangerous voltage on tip-ring, tip-to-ground, and ring-to-ground
- AC/DC transversal and longitudinal current – measures the current on tip-ring (transversal) and tip/ring-to-ground (longitudinal)
- AC/DC current – measures the current on tip-ring, tip-to-ground and ring-to-ground
- Loop resistance – measures the resistance on tip-ring, tip-to-ground and ring-to-ground
- Ringer Equivalent Number (REN) detection – measures the REN required by the analog phone
- Receiver offhook detection – detects whether the port is in onhook or offhook state
- Analog phone detection – detects whether the analog phone is plugged in or not
Benefits of Analog FXS Connectivity Checks
Analog FXS connectivity checks are tests done on analog voice ports to verify signaling and media path quality. These tests can be implemented one port at a time or by cyclically establishing test calls to each port in a gateway which is critical in troubleshooting errors in large deployments.
Among the different types of connectivity tests that can be performed using analog FXS connectivity checks include the following:
- Sequential verification of end-to-end connectivity for signalling and media for each VG end-point through test calls from each end-point to a test verification phone
- Sequential verification of end-to-end connectivity after an image upgrade or image change
- Sequential verification of end-to-end connectivity after of a specific port during troubleshooting of voice quality issues
- Verification of full-duplex connectivity by putting the end-point in loopback so that any digit depressed by the test verification phone is relayed back to the VG
Supported Gateways, Modules, and Voice Interface Cards
Table 1 lists Cisco voice gateways, modules, and voice interface cards (VICs) on which line measurements for FXS ports are supported
Table 1 Gateways, Modules, VICs and their Supported Line Measurements
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Table 2 lists Cisco voice gateways, modules, and VICs on which connectivity checks for FXS ports are supported.
Table 2 Gateways, Modules, VICs and their Supported Connectivity Checks
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How to Configure Enhanced Serviceability Features on Analog Voice Gateways
Note This document does not contain details about configuring Cisco Unified CM. See the documentation for this products for installation and configuration instructions.
This section contains the following procedures:
- Performing Analog FXS Line Measurements on Voice Ports Using Vinetic PEB3304HL Chipsets
- Performing Analog FXS Line Measurements on Voice Ports Using Pro SLIC si3241 Chipsets
- Performing Connectivity Checks on a Single Analog FXS Port
- Performing Connectivity Checks on All Analog FXS Ports in a Router
Performing Analog FXS Line Measurements on Voice Ports Using Vinetic PEB3304HL Chipsets
The onboard voice ports on the Cisco VG224 Analog Voice Gateway and the Cisco IAD2430 Integrated Access Device use the Vinetic PEB3304HL chipset from Infineon Technologies AG. The chipset has a set of integrated test and diagnostic functions that can perform various line measurements.
Prerequisites
The line measurements described in this task are only supported in the Vinetic PEB3304HL chipset version 2.1.
SUMMARY STEPS
DETAILED STEPS
What to Do Next
To perform analog FXS line measurements on analog voice ports that uses Silicon Lab Pro SLIC si3241 chipset, proceed to the “Performing Analog FXS Line Measurements on Voice Ports Using Pro SLIC si3241 Chipsets” section.
Performing Analog FXS Line Measurements on Voice Ports Using Pro SLIC si3241 Chipsets
The onboard voice ports on the Cisco VG202/204 Analog Voice Gateway, Cisco Unified Communications 500 Series, C880 module, Venom EM V3-8FXS-DID, and Tenor FXS VICs use the Pro SLIC si3241 chipset from Silicon Laboratories. The chipset includes functionalities for performing various line fault testing.
SUMMARY STEPS
3. voice-port slot-number/subunit-number/port
6. test voice port slot-number/subunit-number/port line-test type-of-line-test
DETAILED STEPS
What to Do Next
To perform analog FXS line measurements on analog voice ports that uses Vinetic PEB3304HL chipsets, proceed to the “Performing Analog FXS Line Measurements on Voice Ports Using Vinetic PEB3304HL Chipsets” section.
Performing Connectivity Checks on a Single Analog FXS Port
To test the signaling and media path quality of a single analog FXS port, the user needs to perform the following tasks:
Performing Tone Originate Checks on a Single Analog FXS Port
To perform tone originate checks on a single port, the user needs 2 routers or 1 router and 1 phone on a Public Switched Telephone Network (PSTN). The user first issues a test CLI on the router where the port to be tested is located. The tested port then sends a call to a voice port/phone either on the other router or on a phone on a PSTN. The user answers the test call to check for the sound of 7 test tones. The user confirms hearing the test tones by pressing any key on the phone’s digit pad. The user can also verify the signaling and media path quality by using a test equipment. The test is completed when the user places the phone onhook.
SUMMARY STEPS
2. test voice port slot-number/subunit-number/por t connectivity tone originate phone-number
DETAILED STEPS
Performing Tone Terminate Checks on a Single Analog FXS Port
To perform tone terminate checks on a single port, the user needs 2 routers or 1 router and 1 phone on a PSTN. The user first issues a test CLI on the router where the port to be tested is located. Using a phone on the other router or a phone on a PSTN, the user calls the voice port/phone to be tested. The tested port will then send 7 test tones to the calling party. The user confirms hearing the test tones by pressing any key on the phone’s digit pad. The test is completed when the user places the phone onhook.
SUMMARY STEPS
2. test voice port slot-number/subunit-number/port connectivity tone terminate
DETAILED STEPS
Performing Continuity Tests
To perform a Continuity Test (COT) on a single port, the user needs 2 routers. The user first issues a COT terminate command on the router where the first port to be tested for COT terminate is located. The user then issues a COT originate command on the other router where the port to be tested for COT originate is located. After the COT originate command is issued, the port tested for COT originate makes a test call to the port tested for COT terminate. The test proceeds automatically and the test call is disconnected after the test is done. The results of the test is displayed on the screen.
SUMMARY STEPS
2. test voice port slot-number/subunit-number/port connectivity cot terminate
3. test voice port slot-number/subunit-number/port connectivity cot originate phone-number
DETAILED STEPS
What to Do Next
To perform connectivity checks on all analog FXS ports in a router, proceed to the “Performing Connectivity Checks on All Analog FXS Ports in a Router” section.
Performing Connectivity Checks on All Analog FXS Ports in a Router
To test the signaling and media path quality of all analog FXS ports in a router, the user needs to perform the following tasks:
Performing Tone Originate Connectivity Checks
To perform tone originate checks on all analog FXS ports in a router, the user needs 2 routers or 1 router and 1 phone on a PSTN. The user first issues a test CLI on the router where the ports to be tested are located. The CLI configures all analog FXS ports on the router to make a call one at a time to a specified phone on another router or to a phone on a PSTN. The user answers the test call to check for the sound of 7 test tones. The user confirms hearing the test tones by pressing any key on the phone’s digit pad. The test is completed for one voice port when the user places the phone onhook. The next voice port on the router automatically makes a call to the specified number and the test process is repeated. The test is completed after all the ports in the router are tested.
SUMMARY STEPS
2. test voice port all connectivity tone originate phone-number
5. Confirm the sound of the test tones.
DETAILED STEPS
Performing Continuity Tests
To perform COT on all analog FXS ports in a router, the user needs 2 routers. The user first issues a test CLI on any voice port on the first router. The CLI configures the port to receive test calls and remain in COT receive mode after the test is complete. The user then issues a CLI on the other router. The CLI configures all ports on the router to make test calls one at a time to the port on the first router that is configured to accept test calls. The test proceeds automatically and the test result for each port is displayed after every call is completed. After all the ports have been tested, the user issues a CLI on the port receiving the test call to place the port back in to normal mode.
SUMMARY STEPS
2. test voice port slot-number/subunit-number/port connectivity cot terminate remain-in-test-mode
3. test voice port all connectivity cot originate phone-number
4. test voice port slot-number/subunit-number/port connectivity terminate-cancel
DETAILED STEPS
Displaying Results of Connectivity Checks
Use this command to display the results of the last connectivity checks performed on all analog FXS ports on a router.
SUMMARY STEPS
DETAILED STEPS
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show voice connectivity summary |
Displays the results of the last connectivity checks performed on all analog FXS ports on a router. |
What to Do Next
To perform connectivity checks on a single analog FXS port, proceed to the “Performing Connectivity Checks on a Single Analog FXS Port” section.
Configuration Examples for Enhanced Serviceability
This section provides the following configuration examples:
- Example: Performing a DC Voltage Line Test on an Analog FXS Port
- Example: Performing a Connectivity Checks on an Analog FXS Port
Example: Performing a DC Voltage Line Test on an Analog FXS Port
The following example shows a partial output of a DC Voltage line test performed on an analog FXS port using a Vinetic PEB3304HL chipset:
Example: Performing a Connectivity Checks on an Analog FXS Port
The following example shows a partial output of a COT performed on all analog FXS ports in a router:
Additional References
The following sections provide references related to SCCP analog phone support for FXS ports on the Cisco voice gateway.
Related Documents
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Technical Assistance
Feature Information for Enhanced Serviceability
Table 3 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 3 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 3 Feature Information for Enhanced Serviceability
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Provides line measurement and connectivity check support for analog voice ports. The following sections provide information about this feature:
The following commands were introduced or modified: show voice connectivity summary. |