AC-PM-MEDIA-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsAC-PM-MEDIA-MIB

Organization: AudioCodes Ltd

Last Updated: 2009-02-11

Category: Telephony and VoIP, Vendor: AudioCodes

Description: Supplies media stream (RTP/RTCP) performance statistics for AudioCodes gateways, including jitter, packet loss, and estimated MOS scores.

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What Is AC-PM-MEDIA-MIB?

AC-PM-MEDIA-MIB is an AudioCodes module providing performance monitoring statistics for media (RTP/RTCP) streams on AudioCodes voice/media gateways. Per its description, it is split into a Configuration subtree controlling the measurement interval length and per-table alarm thresholds, and a Data subtree presenting the actual monitored elements' statistics, such as jitter, packet loss, and MOS score estimates. This MIB is a clear performance/quality monitoring tool for VoIP media: it lets an operator track call-quality-affecting metrics over configurable intervals and receive a defined sentinel value of -1 when a measurement isn't yet available or applicable, helping distinguish no-data-yet from a genuine zero reading. It is specific to AudioCodes' Performance Monitoring (PM) MIB family and likely used alongside related AC-PM-* MIBs covering other subsystems. It is deployed on AudioCodes media gateways/session border controllers in VoIP and unified communications environments to ensure voice quality, and administrators can download the AC-PM-MEDIA-MIB file to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in AC-PM-MEDIA-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

  • AudioCodes media gateway/session border controller

Monitoring Examples

No specific object names were provided in the sample data, but based on the module description, an operator would configure the measurement interval and thresholds in the Configuration subtree, then poll the Data subtree's per-stream tables for jitter, packet loss percentage, and estimated MOS score. A MOS score dropping below an acceptable threshold, or a -1 sentinel persisting past the expected interval, would indicate a media quality problem or a stream not yet measured.

What Can Be Monitored

  • RTP/RTCP jitter
  • packet loss
  • estimated MOS score
  • measurement interval configuration
  • per-table alarm thresholds
Imported Objects

From AUDIOCODES-TYPES-MIB

acBoardMibsOBJECT-IDENTITY
acGenericOBJECT-IDENTITY
acPerformanceOBJECT-IDENTITY
acProductsOBJECT-IDENTITY
acRegistrationsOBJECT-IDENTITY
audioCodesOBJECT-IDENTITY

From RFC1155-SMI

IpAddress

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32
enterprises

From SNMPv2-TC

DateAndTime
DisplayString
TAddress
TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using acPMDSPUtilVolume OID:

Select an AudioCodes Mediant-series gateways/SBC as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type acPMDSPUtilVolume into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. It reports the activity volume. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Provides performance monitoring statistics for media (RTP/RTCP) streams on AudioCodes gateways, including jitter, packet loss, and MOS score estimates.

Start monitoring AudioCodes Mediant-series gateways/SBCs with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download AC-PM-MEDIA-MIB