---
oid: "1.3.6.1.4.1.866.20.1.10.5.10.1.20"
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) fcfIsdnDSigLowLayerCompatibility(20)}"
description: "fcfIsdnDSigLowLayerCompatibility OBJECT-TYPE"
classification: "MIB object for network management"
last-modified: "2018-04-09"
---

## OID : `1.3.6.1.4.1.866.20.1.10.5.10.1.20`

```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) fcfIsdnDSigLowLayerCompatibility(20)}
```

### Description

```asn1
fcfIsdnDSigLowLayerCompatibility 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 low
layer compatibility information element (LLC IE)
is present or not in the CONNECT and 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 LLC IE in the incoming calls is
made as described below :
the coding standard must be set to 'CCITT
standardized coding',
the information transfer capability must be set
to 'unrestricted digital information',
the transfer mode must be set to 'circuit
mode',
the information transfer rate must be set to
'64 kbit/s',
the user information layer 1 protocol must be
set to 'CCITT standardized rate adaption
X.31 HDLC flag stuffing',
the user information layer 2 protocol must be
set to 'CCITT Recommendation X.25 link
layer' or 'CCITT Recommendation X.25
multilink',
the user information layer 3 protocol must be
set to 'CCITT Recommendation X.25 packet
layer',
the other octets of the LLC IE are not checked,
This object may be set to one of the following
values :
notTransmittedAndNotChecked : the LLC IE is not
present in the outgoing calls and it is
not checked in the incoming calls,
transmittedAndNotChecked : the LLC IE is
present in the outgoing calls and it is
not checked in the incoming calls,
notTransmittedAndChecked : the LLC IE is not
present in the outgoing calls and it is
checked in the incoming calls,
transmittedAndChecked : the LLC 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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