CISCO-VOICE-DIAL-CONTROL-MIB :: cvVoIPCallHistoryModeChgPeriod

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-VOICE-DIAL-CONTROL-MIBcvVoIPCallHistoryModeChgPeriod

cvVoIPCallHistoryModeChgPeriod

Module: CISCO-VOICE-DIAL-CONTROL-MIB

OID (symbolic): CISCO-VOICE-DIAL-CONTROL-MIB::cvVoIPCallHistoryModeChgPeriod

OID (numeric): 1.3.6.1.4.1.9.9.63.1.4.2.1.36

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: The object indicates the interval (N frame-blocks) at which codec mode changes are allowed. This object is not instantiated when the object cvVoIPCallHistoryCoderTypeRate is not equal to gsmAmrNb enum.

What is cvVoIPCallHistoryModeChgPeriod?

This Integer32 (1-100 frame-blocks) indicates the interval, in frame-blocks, at which AMR-NB codec mode changes are permitted, and it is only instantiated when the negotiated coder is gsmAmrNb. Administrators reviewing AMR-NB call behavior use it to understand how frequently the codec was allowed to adapt its bit rate mode during the call. For example, a very long mode-change period would explain why an AMR-NB call was slow to adapt its rate even as network conditions changed mid-call.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.63.1.4.2.1.36
snmpwalk -v2c -c public <target> CISCO-VOICE-DIAL-CONTROL-MIB::cvVoIPCallHistoryModeChgPeriod

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.63.1.4.2.1.36.1
snmpget -v2c -c public <target> CISCO-VOICE-DIAL-CONTROL-MIB::cvVoIPCallHistoryModeChgPeriod.1

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OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.9ciscoMgmtCISCO-SMI
Numeric OIDNameModule
1.3.6.1.4.1.9.9.63ciscoVoiceDialControlMIBCISCO-VOICE-DIAL-CONTROL-MIB
1.3.6.1.4.1.9.9.63.1cvdcMIBObjectsCISCO-VOICE-DIAL-CONTROL-MIB
1.3.6.1.4.1.9.9.63.1.4cvGatewayCallHistoryCISCO-VOICE-DIAL-CONTROL-MIB
1.3.6.1.4.1.9.9.63.1.4.2cvVoIPCallHistoryTableCISCO-VOICE-DIAL-CONTROL-MIB
1.3.6.1.4.1.9.9.63.1.4.2.1cvVoIPCallHistoryEntryCISCO-VOICE-DIAL-CONTROL-MIB
1.3.6.1.4.1.9.9.63.1.4.2.1.36cvVoIPCallHistoryModeChgPeriodCISCO-VOICE-DIAL-CONTROL-MIB