SONUS-ISUP-SERVICE-GROUP-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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Organization: Sonus Networks, Inc.

Last Updated: 2001-07-31

Category: Sonus Networks VoIP Softswitch, VoIP and Telephony

Description: Manages Sonus Networks softswitch ISUP SS7 service group configuration and signaling point parameters.

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What Is SONUS-ISUP-SERVICE-GROUP-MIB?

SONUS-ISUP-SERVICE-GROUP-MIB is a proprietary Sonus Networks MIB for configuring ISUP (SS7) service groups on the vendor's softswitch, covering signaling point addressing and call-routing behavior toward PSTN interconnects. It exposes configuration data such as remote point codes, associated trunk groups, switch type, hunt algorithm, circuit cost, and CIC (circuit identification code) control settings. Its monitoring emphasis is on signaling and routing software health: confirming a service group's remote point code is correctly configured and reachable, and that hunt algorithm/cost settings are producing the expected call routing behavior, since a misconfigured entry directly causes failed ISUP call setups. It relates to the ITU-T/ANSI ISUP signaling standards used to address SS7 point codes. Typical deployment is on PSTN interconnect gateways/softswitches using SS7 signaling. Engineers can download the SONUS-ISUP-SERVICE-GROUP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in SONUS-ISUP-SERVICE-GROUP-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

  • Sonus Networks softswitch
  • SS7 signaling gateway

Monitoring Examples

sonusIsupsgServiceGroupTable/Entry exposes each service group's name, remote point code (sonusIsupsgServiceGroupRemotePointCode), associated trunk group (sonusIsupsgServiceGroupTG), and switch type. Monitoring sonusIsupsgServiceGroupHuntAlgorithm and sonusIsupsgServiceGroupCicControl helps confirm call routing/circuit selection behavior is configured as expected; a service group unexpectedly showing an unreachable remote point code would explain failed ISUP call setups on that trunk.

What Can Be Monitored

  • service group remote point code
  • trunk group association
  • hunt algorithm
  • circuit cost
  • CIC control settings
  • switch type/revision
Imported Objects

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DateAndTime
DisplayString
RowStatus

From SONUS-COMMON-MIB

sonusEventClassOBJECT-TYPE
sonusEventDescriptionOBJECT-TYPE
sonusEventLevelOBJECT-TYPE

From SONUS-SMI

sonusSignallingMIBsOBJECT-IDENTITY

From SONUS-TC

PointCode
SonusAdminState
SonusName
SonusNameReference
SonusPointCode
SonusSupportFlag

How to Use in IPNetwork Monitor

Example using sonusIsupMaintReason OID:

Select a Sonus Networks softswitch, SS7 signaling gateway (ISUP point-code/routing configuration) 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 sonusIsupMaintReason into the Find box to locate it in the OID tree, then select it and click OK. It reports the maintenance reason for blocking/unblocking of the circuit. 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 an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value changes between polls, since this object only carries a meaningful reason code while the circuit is in a blocked state. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Manages ISUP service group configurations for telephony signaling on Sonus network elements.

Start monitoring Sonus Networks softswitch, SS7 signaling gateway (ISUP point-code/routing configuration) 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 SONUS-ISUP-SERVICE-GROUP-MIB