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.
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.
CctCallIdRepresents a Call Identifier. The call identifier is a monotonically assigned, positive integer which uniquely identifies the call within the system. (1..4294967295) · Unsigned32
Represents a Call Identifier. The call identifier is a monotonically increasing unsigned integer which uniquely identifies the call within the system.
The Call ID is represented as an unsigned 32-bit integer. After 4,294,967,295 calls, the ID will wrap and the 4,294,967,296th call will receive the next smallest available id starting from 1.
Zero is not a valid value.
cctmActiveProjectedMaxRxRate
1.3.6.1.4.1.9.9.165.1.1.1.1.1
Unsigned32 · bits per second
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.
cctmActiveProjectedMaxTxRate
1.3.6.1.4.1.9.9.165.1.1.1.1.2
Unsigned32 · bits per second
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.
cctmActiveRxRate
1.3.6.1.4.1.9.9.165.1.1.1.1.3
Unsigned32 · bits per second
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.
cctmActiveTxRate
1.3.6.1.4.1.9.9.165.1.1.1.1.4
Unsigned32 · bits per second
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.
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.
cctmActiveAttemptedECProtocol
1.3.6.1.4.1.9.9.165.1.1.1.1.8
CctmECProtocol1 = normal2 = direct3 = mnp4 = lapmV425 = syncMode6 = asyncMode7 = ara18 = ara29 = otherRepresents possible error correction protocols
normal - No EC present
direct -
mnp -
lapmV42 -
syncMode -
asyncMode - No EC present, same as normal(1)
ara1 - ARA 1.0
ara2 - ARA 2.0
other - EC protocol other than those identified · Integer32
The initial modem error correction protocol attempted during call negotiation.
The actual EC negotiated is in cctmActiveECProtocol.
cctmActiveECProtocol
1.3.6.1.4.1.9.9.165.1.1.1.1.9
CctmECProtocol1 = normal2 = direct3 = mnp4 = lapmV425 = syncMode6 = asyncMode7 = ara18 = ara29 = otherRepresents possible error correction protocols
normal - No EC present
direct -
mnp -
lapmV42 -
syncMode -
asyncMode - No EC present, same as normal(1)
ara1 - ARA 1.0
ara2 - ARA 2.0
other - EC protocol other than those identified · Integer32
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.
cctmActiveSupportedDC
1.3.6.1.4.1.9.9.165.1.1.1.1.10
BITS
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.
cctmActiveDataCompression
1.3.6.1.4.1.9.9.165.1.1.1.1.11
CctmDataCompression1 = none2 = v42bisTx3 = v42bisRx4 = v42bisBoth5 = mnp56 = v44Tx7 = v44Rx8 = v44BothRepresents possible data compression protocols
none - No Data Compression present
v42bisTx - V.42bis in transmit direction only
v42bisRx - V.42bis in receive direction only
v42bisBoth - V.42bis in receive and transmit directions
mnp5 -
v44Tx - V.44 in transmit direction only
v44Rx - V.44 in receive direction only
v44Both - V.44 in receive and transmit directions · Integer32
The modem compression protocol selected for this call.
cctmActiveRxHighWatermark
1.3.6.1.4.1.9.9.165.1.1.1.1.12
Gauge32 · bits per second
The maximum receive data rate achieved during this call.
cctmActiveRxLowWatermark
1.3.6.1.4.1.9.9.165.1.1.1.1.13
Gauge32 · bits per second
The minimum receive data rate during this call.
cctmActiveTxHighWatermark
1.3.6.1.4.1.9.9.165.1.1.1.1.14
Gauge32 · bits per second
The maximum transmit data rate achieved during this call.
cctmActiveTxLowWatermark
1.3.6.1.4.1.9.9.165.1.1.1.1.15
Gauge32 · bits per second
The minimum transmit data rate during this call.
cctmActiveLocalUpRateShifts
1.3.6.1.4.1.9.9.165.1.1.1.1.16
Counter32
The count of locally initiated rate shifts to increase the data rate which were successful.
cctmActiveLocalDownRateShifts
1.3.6.1.4.1.9.9.165.1.1.1.1.17
Counter32
The count of locally initiated rate shifts to decrease the data rate which were successful.
cctmActiveRemoteUpRateShifts
1.3.6.1.4.1.9.9.165.1.1.1.1.18
Counter32
The count of remotely initiated rate shifts to increase the data rate which were successful.
cctmActiveRemoteDownRateShifts
1.3.6.1.4.1.9.9.165.1.1.1.1.19
Counter32
The count of remotely initiated rate shifts to decrease the data rate which were successful.
cctmActiveRateShiftFailures
1.3.6.1.4.1.9.9.165.1.1.1.1.20
Counter32
The count of rate shift attempts which failed to complete.
A failure to complete a rate renegotiation results in a retrain attempt.
cctmActiveLocalRetrains
1.3.6.1.4.1.9.9.165.1.1.1.1.21
Counter32
The count of locally initiated retrains for the call.
Includes successfully completed retrains and those which failed.
cctmActiveRemoteRetrains
1.3.6.1.4.1.9.9.165.1.1.1.1.22
Counter32
The count of remotely initiated retrains for the call.
Includes successfully completed retrains and those which failed.
cctmActiveRetrainFailures
1.3.6.1.4.1.9.9.165.1.1.1.1.23
Counter32
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.
cctmActiveRxLinkOctets
1.3.6.1.4.1.9.9.165.1.1.1.1.24
Counter32
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.
cctmActiveTxLinkOctets
1.3.6.1.4.1.9.9.165.1.1.1.1.25
Counter32
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.
cctmActiveRxECFrames
1.3.6.1.4.1.9.9.165.1.1.1.1.26
Counter32
The total number of error correction data frames received successfully.
This does not include damaged frames or control frames.
cctmActiveTxECFrames
1.3.6.1.4.1.9.9.165.1.1.1.1.27
Counter32
The total number of error correction data frames transmitted successfully.
This does not include data frame resends or control frames.
cctmActiveRxECNAKs
1.3.6.1.4.1.9.9.165.1.1.1.1.28
Counter32
The total number of EC protocol negative acknowledgements (NAK) received.
cctmActiveTxECNAKs
1.3.6.1.4.1.9.9.165.1.1.1.1.29
Counter32
The total number of EC protocol negative acknowledgements (NAK) sent.
cctmActiveRxECFramesBad
1.3.6.1.4.1.9.9.165.1.1.1.1.30
Counter32
The total error correction frames received during the call which were determined to be bad.
cctmActiveECFramesResent
1.3.6.1.4.1.9.9.165.1.1.1.1.31
Counter32
The count of total retransmitted error correction data frames during the call.
cctmActiveECLinkTimeouts
1.3.6.1.4.1.9.9.165.1.1.1.1.32
Counter32
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.
cctmActiveRxCharLost
1.3.6.1.4.1.9.9.165.1.1.1.1.33
Counter32
The number of characters received by the modem but were dropped due to host buffer over run.
cctmHistoryTable
1.3.6.1.4.1.9.9.165.1.2.1
Index: cctHistoryIndex
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.
A monotonically increasing integer for the sole purpose of indexing terminated calls. When it reaches the maximum value the agent wraps the value back to 1 and will flush existing entries.
cctmHistoryProjectedMaxRxRate
1.3.6.1.4.1.9.9.165.1.2.1.1.1
Unsigned32 · bits per second
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.
cctmHistoryProjectedMaxTxRate
1.3.6.1.4.1.9.9.165.1.2.1.1.2
Unsigned32 · bits per second
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.
cctmHistoryFinalRxRate
1.3.6.1.4.1.9.9.165.1.2.1.1.3
Unsigned32 · bits per second
Final receive data rate for this call.
The initial negotiated receive rate is in cctHistoryRxRate.
cctmHistoryFinalTxRate
1.3.6.1.4.1.9.9.165.1.2.1.1.4
Unsigned32 · bits per second
Final transmit data rate for this call.
The initial negotiated transmit rate is in cctHistoryTxRate.
The final modulation for this call.
It is possible for retrains to result in the modulation being renogiated during a call.
cctmHistoryAttemptedECProtocol
1.3.6.1.4.1.9.9.165.1.2.1.1.8
CctmECProtocol1 = normal2 = direct3 = mnp4 = lapmV425 = syncMode6 = asyncMode7 = ara18 = ara29 = otherRepresents possible error correction protocols
normal - No EC present
direct -
mnp -
lapmV42 -
syncMode -
asyncMode - No EC present, same as normal(1)
ara1 - ARA 1.0
ara2 - ARA 2.0
other - EC protocol other than those identified · Integer32
The initial modem error correction protocol attempted during call negotiation.
The actual EC negotiated is in cctmHistoryECProtocol.
cctmHistoryECProtocol
1.3.6.1.4.1.9.9.165.1.2.1.1.9
CctmECProtocol1 = normal2 = direct3 = mnp4 = lapmV425 = syncMode6 = asyncMode7 = ara18 = ara29 = otherRepresents possible error correction protocols
normal - No EC present
direct -
mnp -
lapmV42 -
syncMode -
asyncMode - No EC present, same as normal(1)
ara1 - ARA 1.0
ara2 - ARA 2.0
other - EC protocol other than those identified · Integer32
The modem error correction protocol negotiated for this call.
cctmHistorySupportedDC
1.3.6.1.4.1.9.9.165.1.2.1.1.10
BITS
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.
cctmHistoryDataCompression
1.3.6.1.4.1.9.9.165.1.2.1.1.11
CctmDataCompression1 = none2 = v42bisTx3 = v42bisRx4 = v42bisBoth5 = mnp56 = v44Tx7 = v44Rx8 = v44BothRepresents possible data compression protocols
none - No Data Compression present
v42bisTx - V.42bis in transmit direction only
v42bisRx - V.42bis in receive direction only
v42bisBoth - V.42bis in receive and transmit directions
mnp5 -
v44Tx - V.44 in transmit direction only
v44Rx - V.44 in receive direction only
v44Both - V.44 in receive and transmit directions · Integer32
The modem compression protocol selected for this call.
cctmHistoryRxHighWatermark
1.3.6.1.4.1.9.9.165.1.2.1.1.12
Gauge32 · bits per second
The maximum receive data rate achieved during this call.
cctmHistoryRxLowWatermark
1.3.6.1.4.1.9.9.165.1.2.1.1.13
Gauge32 · bits per second
The minimum receive data rate during this call.
cctmHistoryTxHighWatermark
1.3.6.1.4.1.9.9.165.1.2.1.1.14
Gauge32 · bits per second
The maximum transmit data rate achieved during this call.
cctmHistoryTxLowWatermark
1.3.6.1.4.1.9.9.165.1.2.1.1.15
Gauge32 · bits per second
The minimum transmit data rate during this call.
cctmHistoryLocalUpRateShifts
1.3.6.1.4.1.9.9.165.1.2.1.1.16
Counter32
The count of locally initiated rate shifts to increase the data rate which were successful.
cctmHistoryLocalDownRateShifts
1.3.6.1.4.1.9.9.165.1.2.1.1.17
Counter32
The count of locally initiated rate shifts to decrease the data rate which were successful.
cctmHistoryRemoteUpRateShifts
1.3.6.1.4.1.9.9.165.1.2.1.1.18
Counter32
The count of remotely initiated rate shifts to increase the data rate which were successful.
cctmHistoryRemoteDownRateShifts
1.3.6.1.4.1.9.9.165.1.2.1.1.19
Counter32
The count of remotely initiated rate shifts to decrease the data rate which were successful.
cctmHistoryRateShiftFailures
1.3.6.1.4.1.9.9.165.1.2.1.1.20
Counter32
The count of rate shift attempts which failed to complete.
A failure to complete a rate renegotiation results in a retrain attempt.
cctmHistoryLocalRetrains
1.3.6.1.4.1.9.9.165.1.2.1.1.21
Counter32
The count of locally initiated retrains for the call.
Includes successfully completed retrains and those which failed.
cctmHistoryRemoteRetrains
1.3.6.1.4.1.9.9.165.1.2.1.1.22
Counter32
The count of remotely initiated retrains for the call.
Includes successfully completed retrains and those which failed.
cctmHistoryRetrainFailures
1.3.6.1.4.1.9.9.165.1.2.1.1.23
Counter32
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.
cctmHistoryRxLinkOctets
1.3.6.1.4.1.9.9.165.1.2.1.1.24
Counter32
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.
cctmHistoryTxLinkOctets
1.3.6.1.4.1.9.9.165.1.2.1.1.25
Counter32
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.
cctmHistoryRxECFrames
1.3.6.1.4.1.9.9.165.1.2.1.1.26
Counter32
The total number of error correction data frames received successfully.
This does not include damaged frames or control frames.
cctmHistoryTxECFrames
1.3.6.1.4.1.9.9.165.1.2.1.1.27
Counter32
The total number of error correction data frames transmitted successfully.
This does not include data frame resends or control frames.
cctmHistoryRxECNAKs
1.3.6.1.4.1.9.9.165.1.2.1.1.28
Counter32
The total number of EC protocol negative acknowledgements (NAK) received.
cctmHistoryTxECNAKs
1.3.6.1.4.1.9.9.165.1.2.1.1.29
Counter32
The total number of EC protocol negative acknowledgements (NAK) sent.
cctmHistoryRxECFramesBad
1.3.6.1.4.1.9.9.165.1.2.1.1.30
Counter32
The total error correction frames received during the call which were determined to be bad.
cctmHistoryECFramesResent
1.3.6.1.4.1.9.9.165.1.2.1.1.31
Counter32
The count of total retransmitted error correction data frames during the call.
cctmHistoryECLinkTimeouts
1.3.6.1.4.1.9.9.165.1.2.1.1.32
Counter32
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.
cctmHistoryRxCharLost
1.3.6.1.4.1.9.9.165.1.2.1.1.33
Counter32
The total number of characters received by the modem but were dropped due to host buffer over run.
cctmHistoryDisconnectReason
1.3.6.1.4.1.9.9.165.1.2.1.1.34
Unsigned32
Code indicating the reason this call was terminated.
cctmHistoryDisconnectReasonText
1.3.6.1.4.1.9.9.165.1.2.1.1.35
DisplayStringRepresents textual information taken from the NVT ASCII
character set, as defined in pages 4, 10-11 of RFC 854.
To summarize RFC 854, the NVT ASCII repertoire specifies:
- the use of character codes 0-127 (decimal)
- the graphics characters (32-126) are interpreted as US ASCII
- NUL, LF, CR, BEL, BS, HT, VT and FF have the special meanings specified in RFC 854
- the other 25 codes have no standard interpretation
- the sequence 'CR LF' means newline
- the sequence 'CR NUL' means carriage-return
- an 'LF' not preceded by a 'CR' means moving to the same column on the next line.
- the sequence 'CR x' for any x other than LF or NUL is illegal. (Note that this also means that a string may end with either 'CR LF' or 'CR NUL', but not with CR.)
Any object defined using this syntax may not exceed 255 characters in length. SIZE (0..255) · OCTET STRING · hint 255a
Text description of the disconnect reason indicated by cctHistoryDisconnectReason.
Value is zero-length string if no text is available.
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.
A monotonically increasing integer for the sole purpose of indexing terminated calls. When it reaches the maximum value the agent wraps the value back to 1 and will flush existing entries.
cctmXHistoryRxECInfoFrameSize
1.3.6.1.4.1.9.9.165.1.2.2.1.1
Unsigned32 · octets
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.
cctmXHistoryTxECInfoFrameSize
1.3.6.1.4.1.9.9.165.1.2.2.1.2
Unsigned32 · octets
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.
cctmXHistoryRxECWindowSize
1.3.6.1.4.1.9.9.165.1.2.2.1.3
Unsigned32 · frames
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.
cctmXHistoryTxECWindowSize
1.3.6.1.4.1.9.9.165.1.2.2.1.4
Unsigned32 · frames
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.
cctmXHistoryRxLevel
1.3.6.1.4.1.9.9.165.1.2.2.1.5
Integer32 (-128..0) · dB
The final signal level in the receive direction for applicable modulations.
cctmXHistoryTxLevel
1.3.6.1.4.1.9.9.165.1.2.2.1.6
Integer32 (-128..0) · dB
The final signal level in the transmit direction for applicable modulations.
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.
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.
cctmXHistoryV90ClientId
1.3.6.1.4.1.9.9.165.1.2.2.1.10
Unsigned32 (0..255)
Client modem identification inferred from the V.90 DIL training and sign patterns.
cctmXHistoryECWindowClosures
1.3.6.1.4.1.9.9.165.1.2.2.1.11
Counter32
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.