CISCO-CALL-TRACKER-MODEM-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2005-12-06

Category: Cisco Devices, Telephony and VoIP

Description: Tracks modem call details including connect speeds and error rates on Cisco dial access platforms.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is CISCO-CALL-TRACKER-MODEM-MIB?

CISCO-CALL-TRACKER-MODEM-MIB is a Cisco-proprietary MIB that extends the Cisco Call Tracker framework with modem-specific call detail data for Cisco dial-access equipment such as access servers. It exposes per-call data on active and historical modem sessions, including negotiated and projected connection speeds, modulation type, and error-correction protocol in use. Rather than chassis hardware health, this MIB monitors the software/session-level status of modem calls: connect rate degradation (via cctmActiveRxRate/TxRate versus cctmActiveProjectedMaxRxRate/TxRate), modulation renegotiation issues (cctmActiveAttemptedModulation vs. cctmActiveModulation), and error-correction protocol status, all of which indicate line-quality or modem-negotiation problems. It explicitly extends the base CISCO-CALL-TRACKER-MIB and depends on that module's call-tracking table structure for indexing and correlation. It is typically deployed on Cisco dial-up access server platforms (e.g. AS5xxx series) used by ISPs and enterprises for analog/dial-in connectivity. Engineers can download the CISCO-CALL-TRACKER-MODEM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-CALL-TRACKER-MODEM-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

Cisco dial access servers (e.g. AS5xxx series with modem cards)

Monitoring Examples

A support engineer troubleshooting slow dial-up connections would poll cctmActiveTable and compare cctmActiveRxRate/cctmActiveTxRate against cctmActiveProjectedMaxRxRate/cctmActiveProjectedMaxTxRate to see if a modem is connecting well below its theoretical maximum, indicating a noisy phone line. Comparing cctmActiveAttemptedModulation to cctmActiveModulation reveals whether the modem had to fall back to a lower-performance modulation scheme during negotiation. cctmActiveAttemptedECProtocol versus cctmActiveECProtocol would be checked to confirm error-correction was successfully negotiated, and cctmHistory would be consulted to review patterns across past calls.

What Can Be Monitored

modem connect (Rx/Tx) rates
projected maximum connect rates
modulation type negotiated
error-correction protocol status
modem call history

Imported Objects

From CISCO-CALL-TRACKER-MIB

cctActiveCallId	OBJECT-TYPE
cctHistoryIndex	OBJECT-TYPE

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using cctmActiveLocalUpRateShifts OID:

Select a Cisco dial access server (e.g. AS5xxx with modem cards) 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 cctmActiveLocalUpRateShifts 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. The count of locally initiated rate shifts to increase the data rate which were successful. 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

OID symbolic	OID numeric	Type	Access	Description
cctmActive	1.3.6.1.4.1.9.9.165.1.1
CCT cctmActiveAttemptedECProtocol	1.3.6.1.4.1.9.9.165.1.1.1.1.8	CctmECProtocol	read-only	The initial modem error correction protocol attempted during call negotiation. The actual EC negotiated is in cctmActiveECProtocol.
CCT cctmActiveAttemptedModulation	1.3.6.1.4.1.9.9.165.1.1.1.1.5	CctmModulation	read-only	The initial modulation attempted when the modems began negotiation.
CCT cctmActiveDataCompression	1.3.6.1.4.1.9.9.165.1.1.1.1.11	CctmDataCompression	read-only	The modem compression protocol selected for this call.
C32 cctmActiveECFramesResent	1.3.6.1.4.1.9.9.165.1.1.1.1.31	Counter32	read-only	The count of total retransmitted error correction data frames during the call.
C32 cctmActiveECLinkTimeouts	1.3.6.1.4.1.9.9.165.1.1.1.1.32	Counter32	read-only	This counter provides the number of EC link protocol timer expirations which have occurred during the call. This corresponds to the T401 timer for LAPM and MNP. These are distinct from normal 'keep alive' and 'window open' timeouts.
CCT cctmActiveECProtocol	1.3.6.1.4.1.9.9.165.1.1.1.1.9	CctmECProtocol	read-only	The modem error correction protocol negotiated for this call. The value of this object will be the same as reported in cmProtocolUsed from CISCO-MODEM-MGMT-MIB while the call is active.
cctmActiveEntry	1.3.6.1.4.1.9.9.165.1.1.1.1		not-accessible	The information regarding a single call. Entries are created and deleted in sync with the entries in cctActiveTable, if the call utilizes modem service.
cctmActiveGroup	1.3.6.1.4.1.9.9.165.3.2.2			A collection of objects providing the active call modem information.
CCT cctmActiveInitialModulation	1.3.6.1.4.1.9.9.165.1.1.1.1.6	CctmModulation	read-only	The initial negotiated modulation.
C32 cctmActiveLocalDownRateShifts	1.3.6.1.4.1.9.9.165.1.1.1.1.17	Counter32	read-only	The count of locally initiated rate shifts to decrease the data rate which were successful.
C32 cctmActiveLocalRetrains	1.3.6.1.4.1.9.9.165.1.1.1.1.21	Counter32	read-only	The count of locally initiated retrains for the call. Includes successfully completed retrains and those which failed.
C32 cctmActiveLocalUpRateShiftsEx	1.3.6.1.4.1.9.9.165.1.1.1.1.16	Counter32	read-only	The count of locally initiated rate shifts to increase the data rate which were successful.
CCT cctmActiveModulation	1.3.6.1.4.1.9.9.165.1.1.1.1.7	CctmModulation	read-only	The current modulation for this call. It is possible for retrains to result in the modulation being renogiated during a call. The value of this object will be the same as reported in cmModulationSchemeUsed from CISCO-MODEM-MGMT-MIB while the call is active.
U32 cctmActiveProjectedMaxRxRate	1.3.6.1.4.1.9.9.165.1.1.1.1.1	Unsigned32	read-only	Maximum received rate local modem informs remote modem it will support based on initial negotiations. The remote modem will not attempt to transmit at rates greater than what the local modem will accept. The initial negotiated receive rate is in cctActiveRxRate.
U32 cctmActiveProjectedMaxTxRate	1.3.6.1.4.1.9.9.165.1.1.1.1.2	Unsigned32	read-only	Maximum rate the remote modem indicates it can accept based on initial negotiations. The local modem will not attempt to transmit at rates above what the remote modem will accept. The initial negotiated transmit rate is in cctActiveTxRate.
C32 cctmActiveRateShiftFailures	1.3.6.1.4.1.9.9.165.1.1.1.1.20	Counter32	read-only	The count of rate shift attempts which failed to complete. A failure to complete a rate renegotiation results in a retrain attempt.
C32 cctmActiveRemoteDownRateShifts	1.3.6.1.4.1.9.9.165.1.1.1.1.19	Counter32	read-only	The count of remotely initiated rate shifts to decrease the data rate which were successful.
C32 cctmActiveRemoteRetrains	1.3.6.1.4.1.9.9.165.1.1.1.1.22	Counter32	read-only	The count of remotely initiated retrains for the call. Includes successfully completed retrains and those which failed.
C32 cctmActiveRemoteUpRateShifts	1.3.6.1.4.1.9.9.165.1.1.1.1.18	Counter32	read-only	The count of remotely initiated rate shifts to increase the data rate which were successful.
C32 cctmActiveRetrainFailures	1.3.6.1.4.1.9.9.165.1.1.1.1.23	Counter32	read-only	The count of retrains which failed to complete. A failure to retrain results in another retrain attempt. The call will terminate if too many consecutive retrain failures occur. The consecutive retrain failure threshold is system specific.
C32 cctmActiveRxCharLost	1.3.6.1.4.1.9.9.165.1.1.1.1.33	Counter32	read-only	The number of characters received by the modem but were dropped due to host buffer over run.
C32 cctmActiveRxECFrames	1.3.6.1.4.1.9.9.165.1.1.1.1.26	Counter32	read-only	The total number of error correction data frames received successfully. This does not include damaged frames or control frames.
C32 cctmActiveRxECFramesBad	1.3.6.1.4.1.9.9.165.1.1.1.1.30	Counter32	read-only	The total error correction frames received during the call which were determined to be bad.
C32 cctmActiveRxECNAKs	1.3.6.1.4.1.9.9.165.1.1.1.1.28	Counter32	read-only	The total number of EC protocol negative acknowledgements (NAK) received.
G32 cctmActiveRxHighWatermark	1.3.6.1.4.1.9.9.165.1.1.1.1.12	Gauge32	read-only	The maximum receive data rate achieved during this call.
C32 cctmActiveRxLinkOctets	1.3.6.1.4.1.9.9.165.1.1.1.1.24	Counter32	read-only	The total modem link level octets received during this call. If using Error Correction and Data Compression, this is the compressed data within the EC protocol frames.
G32 cctmActiveRxLowWatermark	1.3.6.1.4.1.9.9.165.1.1.1.1.13	Gauge32	read-only	The minimum receive data rate during this call.
U32 cctmActiveRxRate	1.3.6.1.4.1.9.9.165.1.1.1.1.3	Unsigned32	read-only	Current receive data rate for this call. The value of this object will be the same as reported in cmRXRate from CISCO-MODEM-MGMT-MIB while the call is active.
BIT cctmActiveSupportedDC	1.3.6.1.4.1.9.9.165.1.1.1.1.10	Bits	read-only	The data compression protocols supported by the calling modem. This object is a bit map, with each bit representing a different call type as identified below. A 1-bit indicates the DC protocol is supported. A 0-bit indicates the DC protocol is not supported. Bit 0 - MNP5 Bit 1 - V.42bis in the receive direction Bit 2 - V.42bis in the transmit direction V.42bis may be separately available in Rx or Tx directions. If all bits are zero, no data compression is supported. The particular compression selected by the answering modem is reported in cctmActiveDataCompression.
cctmActiveTable	1.3.6.1.4.1.9.9.165.1.1.1		not-accessible	This table contains entries for active calls in the system which utilize modem resources. It contains general modem session attributes and statistics at the modem link and modem protocol layers. The table extends the cctActiveTable, using the same index, cctActiveCallId. There are no entries for calls not requiring modem services.
C32 cctmActiveTxECFrames	1.3.6.1.4.1.9.9.165.1.1.1.1.27	Counter32	read-only	The total number of error correction data frames transmitted successfully. This does not include data frame resends or control frames.
C32 cctmActiveTxECNAKs	1.3.6.1.4.1.9.9.165.1.1.1.1.29	Counter32	read-only	The total number of EC protocol negative acknowledgements (NAK) sent.
G32 cctmActiveTxHighWatermark	1.3.6.1.4.1.9.9.165.1.1.1.1.14	Gauge32	read-only	The maximum transmit data rate achieved during this call.
C32 cctmActiveTxLinkOctets	1.3.6.1.4.1.9.9.165.1.1.1.1.25	Counter32	read-only	The total modem link level octets transmitted during this call. If using Error Correction and Data Compression, this is the compressed data within the EC protocol frames.
G32 cctmActiveTxLowWatermark	1.3.6.1.4.1.9.9.165.1.1.1.1.15	Gauge32	read-only	The minimum transmit data rate during this call.
U32 cctmActiveTxRate	1.3.6.1.4.1.9.9.165.1.1.1.1.4	Unsigned32	read-only	Current transmit data rate for this call. The value of this object will be the same as reported in cmTXRate from CISCO-MODEM-MGMT-MIB while the call is active.
cctmHistory	1.3.6.1.4.1.9.9.165.1.2
CCT cctmHistoryAttemptedECProtocol	1.3.6.1.4.1.9.9.165.1.2.1.1.8	CctmECProtocol	read-only	The initial modem error correction protocol attempted during call negotiation. The actual EC negotiated is in cctmHistoryECProtocol.
CCT cctmHistoryAttemptedModulation	1.3.6.1.4.1.9.9.165.1.2.1.1.5	CctmModulation	read-only	The initial modulation attempted when the modems began negotiation.
CCT cctmHistoryDataCompression	1.3.6.1.4.1.9.9.165.1.2.1.1.11	CctmDataCompression	read-only	The modem compression protocol selected for this call.
U32 cctmHistoryDisconnectReason	1.3.6.1.4.1.9.9.165.1.2.1.1.34	Unsigned32	read-only	Code indicating the reason this call was terminated.
STR cctmHistoryDisconnectReasonText	1.3.6.1.4.1.9.9.165.1.2.1.1.35	DisplayString	read-only	Text description of the disconnect reason indicated by cctHistoryDisconnectReason. Value is zero-length string if no text is available.
C32 cctmHistoryECFramesResent	1.3.6.1.4.1.9.9.165.1.2.1.1.31	Counter32	read-only	The count of total retransmitted error correction data frames during the call.
C32 cctmHistoryECLinkTimeouts	1.3.6.1.4.1.9.9.165.1.2.1.1.32	Counter32	read-only	This counter provides the number of EC link protocol timer expirations which have occurred during the call. This corresponds to the T401 timer for LAPM and MNP. These are distinct from normal 'keep alive' and 'window open' timeouts.
CCT cctmHistoryECProtocol	1.3.6.1.4.1.9.9.165.1.2.1.1.9	CctmECProtocol	read-only	The modem error correction protocol negotiated for this call.
cctmHistoryEntry	1.3.6.1.4.1.9.9.165.1.2.1.1		not-accessible	The information regarding a single terminated modem call. Entries are created and deleted in sync with the entries in cctHistoryTable, if the call utilized modem service.
CCT cctmHistoryFinalModulation	1.3.6.1.4.1.9.9.165.1.2.1.1.7	CctmModulation	read-only	The final modulation for this call. It is possible for retrains to result in the modulation being renogiated during a call.
U32 cctmHistoryFinalRxRate	1.3.6.1.4.1.9.9.165.1.2.1.1.3	Unsigned32	read-only	Final receive data rate for this call. The initial negotiated receive rate is in cctHistoryRxRate.
U32 cctmHistoryFinalTxRate	1.3.6.1.4.1.9.9.165.1.2.1.1.4	Unsigned32	read-only	Final transmit data rate for this call. The initial negotiated transmit rate is in cctHistoryTxRate.
cctmHistoryGroup	1.3.6.1.4.1.9.9.165.3.2.3			A collection of objects providing the historical call modem information.
CCT cctmHistoryInitialModulation	1.3.6.1.4.1.9.9.165.1.2.1.1.6	CctmModulation	read-only	The initial negotiated modulation.
C32 cctmHistoryLocalDownRateShifts	1.3.6.1.4.1.9.9.165.1.2.1.1.17	Counter32	read-only	The count of locally initiated rate shifts to decrease the data rate which were successful.
C32 cctmHistoryLocalRetrains	1.3.6.1.4.1.9.9.165.1.2.1.1.21	Counter32	read-only	The count of locally initiated retrains for the call. Includes successfully completed retrains and those which failed.
C32 cctmHistoryLocalUpRateShifts	1.3.6.1.4.1.9.9.165.1.2.1.1.16	Counter32	read-only	The count of locally initiated rate shifts to increase the data rate which were successful.
U32 cctmHistoryProjectedMaxRxRate	1.3.6.1.4.1.9.9.165.1.2.1.1.1	Unsigned32	read-only	Maximum received rate local modem informs remote modem it will support based on initial negotiations. The remote modem will not attempt to transmit at rates greater than what the local modem will accept. The initial negotiated receive rate is in cctHistoryRxRate.
U32 cctmHistoryProjectedMaxTxRate	1.3.6.1.4.1.9.9.165.1.2.1.1.2	Unsigned32	read-only	Maximum rate the remote modem indicates it can accept based on initial negotiations. The local modem will not attempt to transmit at rates above what the remote modem will accept. The initial negotiated transmit rate is in cctHistoryTxRate.
C32 cctmHistoryRateShiftFailures	1.3.6.1.4.1.9.9.165.1.2.1.1.20	Counter32	read-only	The count of rate shift attempts which failed to complete. A failure to complete a rate renegotiation results in a retrain attempt.
C32 cctmHistoryRemoteDownRateShifts	1.3.6.1.4.1.9.9.165.1.2.1.1.19	Counter32	read-only	The count of remotely initiated rate shifts to decrease the data rate which were successful.
C32 cctmHistoryRemoteRetrains	1.3.6.1.4.1.9.9.165.1.2.1.1.22	Counter32	read-only	The count of remotely initiated retrains for the call. Includes successfully completed retrains and those which failed.
C32 cctmHistoryRemoteUpRateShifts	1.3.6.1.4.1.9.9.165.1.2.1.1.18	Counter32	read-only	The count of remotely initiated rate shifts to increase the data rate which were successful.
C32 cctmHistoryRetrainFailures	1.3.6.1.4.1.9.9.165.1.2.1.1.23	Counter32	read-only	The count of retrains which failed to complete. A failure to retrain results in another retrain attempt. The call will terminate if too many consecutive retrain failures occur. The consecutive retrain failure threshold is system specific.
C32 cctmHistoryRxCharLost	1.3.6.1.4.1.9.9.165.1.2.1.1.33	Counter32	read-only	The total number of characters received by the modem but were dropped due to host buffer over run.
C32 cctmHistoryRxECFrames	1.3.6.1.4.1.9.9.165.1.2.1.1.26	Counter32	read-only	The total number of error correction data frames received successfully. This does not include damaged frames or control frames.
C32 cctmHistoryRxECFramesBad	1.3.6.1.4.1.9.9.165.1.2.1.1.30	Counter32	read-only	The total error correction frames received during the call which were determined to be bad.
C32 cctmHistoryRxECNAKs	1.3.6.1.4.1.9.9.165.1.2.1.1.28	Counter32	read-only	The total number of EC protocol negative acknowledgements (NAK) received.
G32 cctmHistoryRxHighWatermark	1.3.6.1.4.1.9.9.165.1.2.1.1.12	Gauge32	read-only	The maximum receive data rate achieved during this call.
C32 cctmHistoryRxLinkOctets	1.3.6.1.4.1.9.9.165.1.2.1.1.24	Counter32	read-only	The total modem link level octets received during this call. If using Error Correction and Data Compression, this is the compressed data within the EC protocol frames.
G32 cctmHistoryRxLowWatermark	1.3.6.1.4.1.9.9.165.1.2.1.1.13	Gauge32	read-only	The minimum receive data rate during this call.
BIT cctmHistorySupportedDC	1.3.6.1.4.1.9.9.165.1.2.1.1.10	Bits	read-only	The data compression protocols supported by the calling modem. This object is a bit map, with each bit representing a different call type as identified below. A 1-bit indicates the DC protocol is supported. A 0-bit indicates the DC protocol is not supported. Bit 0 - MNP5 Bit 1 - V.42bis in the receive direction Bit 2 - V.42bis in the transmit direction V.42bis may be separately available in Rx or Tx directions. If all bits are zero, no data compression is supported. The particular compression selected by the answering modem is reported in cctmHistoryDataCompression.
cctmHistoryTable	1.3.6.1.4.1.9.9.165.1.2.1		not-accessible	This table provides information on terminated modem calls. It contains general modem session attributes and statistics at the modem link and modem protocol layers. The table extends the cctHistoryTable, using the same index, cctHistoryIndex. There are no entries for calls not requiring modem services.
C32 cctmHistoryTxECFrames	1.3.6.1.4.1.9.9.165.1.2.1.1.27	Counter32	read-only	The total number of error correction data frames transmitted successfully. This does not include data frame resends or control frames.
C32 cctmHistoryTxECNAKs	1.3.6.1.4.1.9.9.165.1.2.1.1.29	Counter32	read-only	The total number of EC protocol negative acknowledgements (NAK) sent.
G32 cctmHistoryTxHighWatermark	1.3.6.1.4.1.9.9.165.1.2.1.1.14	Gauge32	read-only	The maximum transmit data rate achieved during this call.
C32 cctmHistoryTxLinkOctets	1.3.6.1.4.1.9.9.165.1.2.1.1.25	Counter32	read-only	The total modem link level octets transmitted during this call. If using Error Correction and Data Compression, this is the compressed data within the EC protocol frames.
G32 cctmHistoryTxLowWatermark	1.3.6.1.4.1.9.9.165.1.2.1.1.15	Gauge32	read-only	The minimum transmit data rate during this call.
cctmMIBCompliance	1.3.6.1.4.1.9.9.165.3.1.1			The compliance statement for entities which implement the CISCO CALL TRACKER MODEM MIB
cctmMIBCompliances	1.3.6.1.4.1.9.9.165.3.1
cctmMIBConformance	1.3.6.1.4.1.9.9.165.3
cctmMIBGroups	1.3.6.1.4.1.9.9.165.3.2
cctmMIBNotificationPrefix	1.3.6.1.4.1.9.9.165.2
cctmMIBNotifications	1.3.6.1.4.1.9.9.165.2.0
cctmMIBObjects	1.3.6.1.4.1.9.9.165.1
INT cctmXHistoryConstellation	1.3.6.1.4.1.9.9.165.1.2.2.1.7	INTEGER	read-only	Connection constellation size.
C32 cctmXHistoryECWindowClosures	1.3.6.1.4.1.9.9.165.1.2.2.1.11	Counter32	read-only	The number of times the EC protocol window closed without receiving an ACK or NAK from the remote modem. A closure occurs when the maximum number of EC information frames have been sent without receiving any acknowledgement. The window size is provided in cctmHistoryRxECWindowSize.
cctmXHistoryEntry	1.3.6.1.4.1.9.9.165.1.2.2.1		not-accessible	The detailed information for a single terminated modem call. Entries are created and deleted in sync with the entries in cctHistoryTable, if the call utilized modem service.
cctmXHistoryGroup	1.3.6.1.4.1.9.9.165.3.2.4			A collection of objects providing the historical detailed call modem information.
U32 cctmXHistoryRxECInfoFrameSize	1.3.6.1.4.1.9.9.165.1.2.2.1.1	Unsigned32	read-only	Negotiated maximum EC frame data payload size in the receive direction. LAPM distinguishes between Rx and Tx. MNP will have the the same information frame size for Rx and Tx, cctmHistoryTxECInfoFrameSize.
U32 cctmXHistoryRxECWindowSize	1.3.6.1.4.1.9.9.165.1.2.2.1.3	Unsigned32	read-only	The EC protocol window size in units of frames in the receive direction. This is the maximum number of information frames sent from remote modem that may be outstanding without receiving any acknowledgement from the local modem. If the EC protocol is LAPM, the Rx and Tx windows are separately negotiated and may have different values. If MNP, both windows are negotiated together and have the same value for this object and cctHistoryTxECWindowSize.
I32 cctmXHistoryRxLevel	1.3.6.1.4.1.9.9.165.1.2.2.1.5	Integer32	read-only	The final signal level in the receive direction for applicable modulations.
cctmXHistoryTable	1.3.6.1.4.1.9.9.165.1.2.2		not-accessible	This table provides additional, detailed information on terminated modem calls. It contains low level modem session attributes and statistics at the modem link and modem protocol layers. The table extends the cctHistoryTable, using the same index, cctHistoryIndex.
U32 cctmXHistoryTxECInfoFrameSize	1.3.6.1.4.1.9.9.165.1.2.2.1.2	Unsigned32	read-only	Negotiated maximum EC frame data payload size in the transmit direction. LAPM distinguishes between Rx and Tx. MNP will have the the same information frame size for Tx and Rx, cctmHistoryRxECInfoFrameSize.
U32 cctmXHistoryTxECWindowSize	1.3.6.1.4.1.9.9.165.1.2.2.1.4	Unsigned32	read-only	The EC protocol window size in units of frames in the transmit direction. This is the maximum number of information frames sent from local modem that may be outstanding without receiving any acknowledgement from the remote modem. If the EC protocol is LAPM, the Rx and Tx windows are separately negotiated and may have different values. If MNP, both windows are negotiated together and have the same value for this object and cctHistoryRxECWindowSize.
I32 cctmXHistoryTxLevel	1.3.6.1.4.1.9.9.165.1.2.2.1.6	Integer32	read-only	The final signal level in the transmit direction for applicable modulations.
U32 cctmXHistoryV90ClientId	1.3.6.1.4.1.9.9.165.1.2.2.1.10	Unsigned32	read-only	Client modem identification inferred from the V.90 DIL training and sign patterns.
INT cctmXHistoryV90Failure	1.3.6.1.4.1.9.9.165.1.2.2.1.9	INTEGER	read-only	This object provides an interpretation of why V.90 modulation was not achieved. noFailure(1) - V.90 was not attempted or it was successful. The value of cctmXHistoryV90Status will be notAttempted(1) or success(3) respectively. clientNonPCM(2) - Client selected a non-PCM connection due to PSTN properties. clientFallback(3) - Client was unable to sustain PCM due to PSTN properties and fellback to a non-PCM connection. serverV90Disabled(4) - Client attempted V.90 but server modem was configured to disable V.90.
INT cctmXHistoryV90Status	1.3.6.1.4.1.9.9.165.1.2.2.1.8	INTEGER	read-only	This object indicates if V.90 modulation was attempted during initial modem negotiation. notAttempted(1) - Client modem did not attempt V.90 failure(2) - Client and server modems attempted V.90, but were not successful success(3) - Client and server modems successfully negotiated V.90 during call setup.
ciscoCallTrackerModemMIB	1.3.6.1.4.1.9.9.165			This MIB module provides modem call related data for tracking the progress and status of a call. This module extends tables defined in the MIB module ciscoCallTrackerMIB in CISCO-CALL-TRACKER-MIB.

RFC description

Tracks modem call progress, modulation, rate shifts, and connection status for call analysis.

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Download CISCO-CALL-TRACKER-MODEM-MIB