ATT-CNM-SIP-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › ATT-CNM-SIP-MIB

Category: Telephony and VoIP, Vendor: AT&T

Description: Provides AT&T Customer Network Management objects for SIP trunk service monitoring and call quality statistics.

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What Is ATT-CNM-SIP-MIB?

ATT-CNM-SIP-MIB provides AT&T Customer Network Management objects for SIP trunk service monitoring and call quality statistics. No module description or sample objects were available, so the object set is inferred from its stated scope. Its monitoring emphasis is on software/service status for a managed voice service: SIP trunk registration state and call quality metrics such as jitter, packet loss, and MOS score, which reveal a degraded or down trunk affecting voice quality. It is a carrier-specific module used as part of AT&T's broader Customer Network Management (CNM) reporting suite alongside other SIP-related monitoring objects. It is used on enterprise SIP trunk customer premises equipment or gateways under an AT&T managed voice service, and technicians supporting these deployments can download the ATT-CNM-SIP-MIB file to load into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ATT-CNM-SIP-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

  • AT&T-managed SIP trunk CPE/gateway

Monitoring Examples

No object or table names were supplied for this module. Consistent with its description, a SIP trunk CNM MIB of this kind would typically expose objects for trunk registration status and call quality metrics such as jitter, packet loss, and MOS score. A managed-service administrator would poll these to detect a degraded or down SIP trunk that is affecting voice call quality for the customer.

What Can Be Monitored

  • SIP trunk registration status
  • call quality metrics (jitter, packet loss, MOS)
  • active call/session count
  • trunk service status
Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Gauge
enterprises

From RFC1213-MIB

DisplayString
OIDs

RFC description

Manages AT&T SMDS Interface Protocol (SIP) configuration and measurements for Customer Network Management. Supports SIP error logging and Level 3 traffic analysis.

Start monitoring AT&T Customer Network Management (CNM) SIP trunk gateway equipment (legacy) 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 ATT-CNM-SIP-MIB