A3COM-HUAWEI-VOICE-IF-MIB

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Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2007-12-10

Category: Telephony and VoIP, Vendor: H3C/HH3C

Description: Manages voice interface parameters on H3C/3Com gateways, covering signal type, echo cancellation, comfort noise generation, and port-level configuration.

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What Is A3COM-HUAWEI-VOICE-IF-MIB?

This MIB manages per-port voice interface configuration on H3C/3Com voice gateways, covering analog/digital signal handling for individual voice ports. It exposes settings such as comfort-noise generation, echo cancellation switch and delay, input/output gain, and dial-timer parameters, keyed to a specific voice interface entry. While mostly configuration data, monitoring these per-port settings (echo-cancel status, gain levels) helps an operator confirm each voice port is tuned correctly and diagnose call-quality complaints traced to a specific interface. It complements A3COM-HUAWEI-VODIALCONTROL-MIB (dial routing) and the call-active/history MIBs for full voice-gateway visibility. It's deployed on H3C/3Com voice gateway hardware terminating analog or digital voice circuits, and technicians typically perform an A3COM-HUAWEI-VOICE-IF-MIB download to add per-port voice diagnostics to their monitoring toolkit.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-VOICE-IF-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

H3C/3Com voice gateways

Monitoring Examples

An admin troubleshooting echo complaints on a specific line would check h3cVoiceIfCfgEchoCancelSwitch and h3cVoiceIfCfgEchoCancelDelay in the corresponding h3cVoiceIfConfigEntry of h3cVoiceIfConfigTable to confirm echo cancellation is enabled with an appropriate delay window. Checking h3cVoiceIfCfgInputGain and h3cVoiceIfCfgOutputGain reveals whether a port's audio levels are mismatched, a common cause of "too quiet/too loud" complaints, while h3cVoiceIfCfgCngOn shows whether comfort noise is generated during silence.

What Can Be Monitored

echo cancellation status and delay
input/output gain levels
comfort noise generation status
dial timer intervals
port-level voice configuration

Imported Objects

From A3COM-HUAWEI-OID-MIB

h3cVoice

OBJECT-IDENTITY

From IF-MIB

ifIndex

OBJECT-TYPE

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cVoiceInterface	1.3.6.1.4.1.43.45.1.10.2.39.13			This MIB file is to provide the definition of the voice interface general configuration.
h3cVoiceIfObjects	1.3.6.1.4.1.43.45.1.10.2.39.13.1
h3cVoiceIfConfigTable	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1		not-accessible	The table contains configurable parameters for both analog voice interface and digital voice interface.
h3cVoiceIfConfigEntry	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1		not-accessible	The entry of voice interface table.
INT h3cVoiceIfCfgCngOn	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.1	INTEGER	read-write	This object indicates whether the silence gaps should be filled with background noise. It is applicable to FXO, FXS, E&M subscriber lines and E1/T1 voice subscriber line.
INT h3cVoiceIfCfgNonLinearSwitch	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.2	INTEGER	read-write	This object expresses the nonlinear processing is enable or disable for the voice interface. It is applicable to FXO, FXS, E&M subscriber lines and E1/T1 voice subscriber line. Currently, only digital voice subscriber lines can be set disabled.
I32 h3cVoiceIfCfgInputGain	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.3	Integer32	read-write	This object indicates the amount of gain added to the receiver side of the voice interface. Unit is 0.1 db. It is applicable to FXO, FXS, E&M subscriber lines and E1/T1 voice subscriber line.
I32 h3cVoiceIfCfgOutputGain	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.4	Integer32	read-write	This object indicates the amount of gain added to the send side of the voice interface. Unit is 0.1 db. It is applicable to FXO, FXS, E&M subscriber lines and E1/T1 voice subscriber line.
INT h3cVoiceIfCfgEchoCancelSwitch	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.5	INTEGER	read-write	This object indicates whether the echo cancellation is enabled. It is applicable to FXO, FXS, E&M subscriber lines and E1/T1 voice subscriber line.
I32 h3cVoiceIfCfgEchoCancelDelay	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.6	Integer32	read-write	This object indicates the delay of the echo cancellation for the voice interface. This value couldn't be modified unless h3cVoiceIfCfgEchoCancelSwitch is enable. Unit is milliseconds. It is applicable to FXO, FXS, E&M subscriber lines and E1/T1 voice subscriber line. The default value of this object is 32.
I32 h3cVoiceIfCfgTimerDialInterval	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.7	Integer32	read-write	The interval, in seconds, between two dialing numbers. The default value of this object is 10 seconds. It is applicable to FXO, FXS, E&M subscriber lines and E1/T1 with loop-start or ground-start protocol voice subscriber line.
I32 h3cVoiceIfCfgTimerFirstDial	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.8	Integer32	read-write	The period of time, in seconds, before dialing the first number. The default value of this object is 10 seconds. It is applicable to FXO, FXS subscriber lines and E1/T1 with loop-start or ground-start protocol voice subscriber line.
STR h3cVoiceIfCfgPrivateline	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.9	DisplayString	read-write	This object indicates the E.164 phone number for plar mode. It is applicable to FXO, FXS, E&M subscriber lines and E1/T1 voice subscriber line.
OCT h3cVoiceIfCfgRegTone	1.3.6.1.4.1.43.45.1.10.2.39.13.1.1.1.10	OCTET STRING	read-write	This object uses 2 or 3 letter country code specify voice parameters of different countrys. This value will take effect on all voice interfaces of all cards on the device.

RFC description

Configures voice interface parameters for both analog and digital voice interfaces with echo cancellation settings.

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Download A3COM-HUAWEI-VOICE-IF-MIB

What Is A3COM-HUAWEI-VOICE-IF-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description