---
oid: "1.3.6.1.4.1.866.20.1.10.5.10.1.21"
asn1-notation: "{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 866 frxSoftware(20) frxConfig(1) fcInterfaces(10) fcfIsdn(5) fcfIsdnDChannelSignallingTable(10) fcfIsdnDChannelSignallingEntry(1) fcfIsdnDSigHighLayerCompatibility(21)}"
description: "fcfIsdnDSigHighLayerCompatibility OBJECT-TYPE"
classification: "MIB object for network management"
last-modified: "2018-04-09"
---

## OID : `1.3.6.1.4.1.866.20.1.10.5.10.1.21`

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 866 frxSoftware(20) frxConfig(1) fcInterfaces(10) fcfIsdn(5) fcfIsdnDChannelSignallingTable(10) fcfIsdnDChannelSignallingEntry(1) fcfIsdnDSigHighLayerCompatibility(21)}
```

### Description

```asn1
fcfIsdnDSigHighLayerCompatibility OBJECT-TYPE
SYNTAX INTEGER {
notTransmittedAndNotChecked(1),
transmittedAndNotChecked(2),
notTransmittedAndChecked(3),
transmittedAndChecked(4)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The value of this object indicates whether the
high layer compatibility information element (HLC
IE) is present or not in the SETUP call
establishment messages sent from this basic rate
interface (outgoing call) and whether it is
checked or not in the same messages received by
this basic rate interface (incoming call).
The checking of HLC IE in the incoming calls
consists in verifying that the HLC IE is equal to
the value of fcfIsdnDSigHighLayerCharactIdent.
This object may be set to one of the following
values :
notTransmittedAndNotChecked : the HLC IE is not
present in the outgoing calls and it is
not checked in the incoming calls,
transmittedAndNotChecked : the HLC IE is
present in the outgoing calls and it is
not checked in the incoming calls,
notTransmittedAndChecked : the HLC IE is not
present in the outgoing calls and it is
checked in the incoming calls,
transmittedAndChecked : the HLC IE is present
in the outgoing calls and it is checked in
the incoming calls.
The default value is 'notTransmittedAndChecked'."
```

**Classification**: MIB object for network management

### Child OIDs

No child OID

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