---
oid: "1.3.6.1.4.1.562.2.4.1.127.6.10.1.1"
asn1-notation: "{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 562 magellan(2) passport(4) components(1) gsmCs(127) gsmCsV42bis(6) gsmCsV42bisProvTable(10) gsmCsV42bisProvEntry(1) gsmCsV42bisCompressionDirection(1)}"
description: "gsmCsV42bisCompressionDirection OBJECT-TYPE "
last-modified: "2017-12-20"
tags: [oid-repository]
---

## OID: `1.3.6.1.4.1.562.2.4.1.127.6.10.1.1` (last updated: 2017-12-20)

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 562 magellan(2) passport(4) components(1) gsmCs(127) gsmCsV42bis(6) gsmCsV42bisProvTable(10) gsmCsV42bisProvEntry(1) gsmCsV42bisCompressionDirection(1)}
```

### Description

```asn1
gsmCsV42bisCompressionDirection OBJECT-TYPE 
SYNTAX INTEGER \{ 
none(0), 
encode(1), 
decode(2), 
both(3) \} 
ACCESS read-write 
STATUS mandatory 
DESCRIPTION 
"This attribute specifies the V.42bis data compression direction to be 
supported. The value for compression direction is negotiated at link 
setup by the data link protocol by way of the Exchange 
Identification (XID) negotiation of parameter P0 (compression 
direction). 
During XID negotiation of parameter P0, both sides (IWF and 
mobile or IWF and Public Switched Telephone Network (PSTN)) 
agree on the compression direction. 
Valid values are: 
none, No compression is present. 
encode, The data sent by the IWF to the other entity is compressed. 
decode, The data received by the IWF from the other entity is 
compressed. 
both, The data sent and received by the IWF is compressed. 
The negotiated value can be viewed in the component 
GsmIwfV42bisOp attribute compressionDirection. Changes to this 
attribute do not effect existing calls." 
DEFVAL \{ both \}

**Classification**: MIB object for network management

### Child OIDs

No child OID

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