AC-MEDIA-MIB :: acVoiceECMaxLength

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › AC-MEDIA-MIB › acVoiceECMaxLength

acVoiceECMaxLength

Module: AC-MEDIA-MIB

OID (symbolic): AC-MEDIA-MIB::acVoiceECMaxLength

OID (numeric): 1.3.6.1.4.1.5003.9.10.4.1.2.3.2

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: Defines the maximum board EC (Echo Canceler) length capability.

0 = EC length determined internally to reach maximum channel capacity. 4 = 32 msec 11 = 64 msec 22 = 128 msec TP-1610 only: Using 64 or 128 msec reduces the channel capacity to 200 channels. . Access: Offline. AC INI-Param: MAXECHOCANCELLERLENGTH

What is acVoiceECMaxLength?

This enumerated integer (0, 4, 11, or 22) sets the echo canceller filter length in 32 ms units: 0=automatic, 4=32ms, 11=64ms, 22=128ms. Engineers increase length on high-delay trunks to cover longer echo periods, accepting reduced channel capacity. Setting it to 22 (128 ms) handles satellite calls but reduces capacity from 240 to 200 channels.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.4.1.2.3.2
snmpwalk -v2c -c public <target> AC-MEDIA-MIB::acVoiceECMaxLength

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.4.1.2.3.2.1
snmpget -v2c -c public <target> AC-MEDIA-MIB::acVoiceECMaxLength.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5003.9.10.4.1.2.3.2.1 i <value>

Start monitoring AudioCodes Mediant-series gateways with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the AC-MEDIA-MIB::acVoiceECMaxLength OID value, configure state conditions and alerts, and monitor any AudioCodes Mediant-series gateways from a single console.

OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.5003audioCodesAC-ALARM-MIB
1.3.6.1.4.1.5003.9acProductsAC-ATM-MIB
1.3.6.1.4.1.5003.9.10acBoardMibsAC-ATM-MIB
Numeric OIDNameModule
1.3.6.1.4.1.5003.9.10.4acMediaAC-MEDIA-MIB
1.3.6.1.4.1.5003.9.10.4.1acMediaConfigurationAC-MEDIA-MIB
1.3.6.1.4.1.5003.9.10.4.1.2acMediaVoiceConfigAC-MEDIA-MIB
1.3.6.1.4.1.5003.9.10.4.1.2.3acVoiceECAC-MEDIA-MIB
1.3.6.1.4.1.5003.9.10.4.1.2.3.2acVoiceECMaxLengthAC-MEDIA-MIB