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Configure SIP compression mode: registry value sipcompression (HKCU lync)UserHKCU\software\policies\microsoft\office\16.0\lync

Policy ID
L_PolicySipCompression_1
Scope
User Configuration
Supported on
At least Windows Server 2008 R2 or Windows 7
Source
Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
Category
Skype for Business 2016 › Microsoft Lync Feature Policies

Registry

sipcompression

REG_DWORDUser
HKCU\software\policies\microsoft\office\16.0\lync Current key
Enabled value
Depends on the option value
Element
Configure SIP compression mode
Options
ItemStored value
Always disabled0
Always enabled1
Based on adaptor speed (default)2
Based on ping round-trip time3
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\lync]

; Options (use only one)
; Always disabled
"sipcompression"=dword:00000000
; Always enabled
"sipcompression"=dword:00000001
; Based on adaptor speed (default)
"sipcompression"=dword:00000002
; Based on ping round-trip time
"sipcompression"=dword:00000003
CMD
:: Options (use only one)

:: Always disabled
reg add "HKCU\software\policies\microsoft\office\16.0\lync" /v "sipcompression" /t REG_DWORD /d 0 /f
:: Always enabled
reg add "HKCU\software\policies\microsoft\office\16.0\lync" /v "sipcompression" /t REG_DWORD /d 1 /f
:: Based on adaptor speed (default)
reg add "HKCU\software\policies\microsoft\office\16.0\lync" /v "sipcompression" /t REG_DWORD /d 2 /f
:: Based on ping round-trip time
reg add "HKCU\software\policies\microsoft\office\16.0\lync" /v "sipcompression" /t REG_DWORD /d 3 /f
PowerShell
# Common: create the key
New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\lync' -Force | Out-Null

# Options (use only one)
# Always disabled
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\lync' -Name 'sipcompression' -PropertyType DWord -Value 0 -Force | Out-Null
# Always enabled
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\lync' -Name 'sipcompression' -PropertyType DWord -Value 1 -Force | Out-Null
# Based on adaptor speed (default)
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\lync' -Name 'sipcompression' -PropertyType DWord -Value 2 -Force | Out-Null
# Based on ping round-trip time
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\lync' -Name 'sipcompression' -PropertyType DWord -Value 3 -Force | Out-Null