Nortel-MsCarrier-MscPassport-TdmaIwfMIB :: mscTdmaBcModemModemAlgorithmInUse

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-TdmaIwfMIB › mscTdmaBcModemModemAlgorithmInUse

mscTdmaBcModemModemAlgorithmInUse

Module: Nortel-MsCarrier-MscPassport-TdmaIwfMIB

OID (symbolic): Nortel-MsCarrier-MscPassport-TdmaIwfMIB::mscTdmaBcModemModemAlgorithmInUse

OID (numeric): 1.3.6.1.4.1.562.36.2.1.136.3.10.1.3

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: This attribute indicates the current modem algorithm(s) active for the channel. This attribute has one of the following values: t30: T.30 is active. T.30 is the Group 3 fax protocol. v17: V.17 is active.V.17 is an ITU-T 14400bit/s modem standard. v21: V.21 is active. V.21 is an ITU-4 300bit/s modem standard. v22: V.22 ia active. V.22 is an ITU-T modem standard that operates at 1200bit/s and 600 baud. v22bis: V.22bis is active. V.22bis is an ITU-T modem standard that operates at 2400bit/s and 600 baud. v27ter: V.27ter is active. V.27ter is an ITU-T 7200bit/s modem standard. v29: V.29 is active. V.29 is an ITU-T 9600bit/s modem standard. v32: V.32 is active. V.32 is an ITU-T modem standard that operates at 9600bit/s and 2400 baud. v32bis: V.32bis is an ITU-T modem standard that operates at a speed of 14.4kbit/s.

Description of bits: t30(0) v17(1) v21(2) v22(3) v22bis(4) v27ter(5) v29(6) v32(7) v32bis(8)

What is mscTdmaBcModemModemAlgorithmInUse?

A 2-byte bitmask reporting which modem/fax protocol(s) are currently active on this channel -- bit 0 for T.30 (Group 3 fax), and bits 1-8 for various ITU-T modem standards from V.17 (14.4 kbit/s) down through V.21 (300 bit/s), V.22/V.22bis, V.27ter, V.29, and V.32/V.32bis. Admins can decode this to confirm exactly which modulation standard a given call actually negotiated, useful when a call's throughput doesn't match what was expected for its nominal rate.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.136.3.10.1.3
snmpwalk -v2c -c public <target> Nortel-MsCarrier-MscPassport-TdmaIwfMIB::mscTdmaBcModemModemAlgorithmInUse

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.136.3.10.1.3.1
snmpget -v2c -c public <target> Nortel-MsCarrier-MscPassport-TdmaIwfMIB::mscTdmaBcModemModemAlgorithmInUse.1

Start monitoring Nortel MsCarrier MscPassport switch (TDMA mobile interworking function) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Nortel-MsCarrier-MscPassport-TdmaIwfMIB::mscTdmaBcModemModemAlgorithmInUse OID value, configure state conditions and alerts, and monitor any Nortel MsCarrier MscPassport switch (TDMA mobile interworking function) from a single console.

OID Breakdown

Upper-level ancestors (10 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
1.3.6.1.4.1.562nortelCPM-NORTEL-MIB
1.3.6.1.4.1.562.36msCarrierNortel-MsCarrier-MscPassport-UsefulDefinitionsMIB
1.3.6.1.4.1.562.36.2mscPassportNortel-MsCarrier-MscPassport-UsefulDefinitionsMIB
1.3.6.1.4.1.562.36.2.1mscComponentsNortel-MsCarrier-MscPassport-UsefulDefinitionsMIB
Numeric OIDNameModule
1.3.6.1.4.1.562.36.2.1.136mscTdmaBcNortel-MsCarrier-MscPassport-TdmaIwfMIB
1.3.6.1.4.1.562.36.2.1.136.3mscTdmaBcModemNortel-MsCarrier-MscPassport-TdmaIwfMIB
1.3.6.1.4.1.562.36.2.1.136.3.10mscTdmaBcModemOperTableNortel-MsCarrier-MscPassport-TdmaIwfMIB
1.3.6.1.4.1.562.36.2.1.136.3.10.1mscTdmaBcModemOperEntryNortel-MsCarrier-MscPassport-TdmaIwfMIB
1.3.6.1.4.1.562.36.2.1.136.3.10.1.3mscTdmaBcModemModemAlgorithmInUseNortel-MsCarrier-MscPassport-TdmaIwfMIB