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Download free VoIP/SIP server and client for Windows.OfficeSIP Messenger
Download Freeware OfficeSIP Messenger 1.9.1 (msi- or exe-installer)
Download Freeware OfficeSIP Messenger 2.0.1 (msi- or exe-installer)
System Requirements
- Supported Operating Systems: Windows Server 2003; Windows Server 2008; Windows Vista; Windows XP; Windows 7
- .NET Framework 3.5 SP1 (free download from Microsoft)
- RAM: 256 MB (Minimun); 512 MB (Recommended)
- Display: 800 x 600, 256 colors (Minimum)
- Processor: 400 MHz Pentium processor or equivalent (Minimum); 1GHz Pentium processor or equivalent (Recommended)
OfficeSIP Server
Download Freeware OfficeSIP Server 2.6 (zip - 904 Kb)
ATT: Use Setup-2.x.exe (not .msi) for installation, installer download & install MS SQL Compact Edition (required, freeware).
System Requirements
- Supported Operating Systems: Windows Server 2003; Windows Server 2008; Windows Vista; Windows XP; Windows 7
- .NET Framework 3.5 SP1 (free download from Microsoft)
- SQL Server Compact 3.5 SP1 (free download from Microsoft)
- RAM: 512 MB (Minimun); 1024 MB (Recommended)
- Display: 800 x 600, 256 colors (Minimum)
- Processor: 400 MHz Pentium processor or equivalent (Minimum); 1GHz Pentium processor or equivalent (Recommended)
Tutorials
How to setup SIP serverHow to configure DNS server for SIP server
How to configure Service Principal Names (SPN) on Windows Server 2008
OfficeSIP TURN Server
Download Freeware OfficeSIP TURN Server 1.0 (msi - 427 Kb)
System Requirements
- Supported Operating Systems: Windows Server 2003; Windows Server 2008; Windows Vista; Windows XP; Windows 7
- .NET Framework 3.5 SP1 (free download from Microsoft)
- RAM: 256 MB (Minimun); 1024 MB (Recommended)
- Processor: 400 MHz Pentium processor or equivalent (Minimum); 1GHz Pentium processor or equivalent (Recommended)
OfficeSIP Softphone
Download Freeware OfficeSIP Softphone 1.0 (msi- or exe-installer)
System Requirements
- Supported Operating Systems: Windows Server 2003; Windows Server 2008; Windows Vista; Windows XP; Windows 7
- .NET Framework 3.5 SP1 (free download from Microsoft)
- RAM: 256 MB (Minimun); 512 MB (Recommended)
- Display: 800 x 600, 256 colors (Minimum)
- Processor: 400 MHz Pentium processor or equivalent (Minimum); 1GHz Pentium processor or equivalent (Recommended)
Freeware 3td Party SIP Softphones
Old versions:
- OfficeSIP Server 2.1.zip (806 Kb)
- OfficeSIP Server 2.2.zip (797 Kb)
- OfficeSIP Server 2.3.zip (866 Kb)
- OfficeSIP Server 2.4.zip (874 Kb)
- OfficeSIP Server 2.5.zip (893 Kb)
- OfficeSIP Messenger 1.5
- OfficeSIP Messenger 1.6 (msi- or exe-installer)
- OfficeSIP Messenger 1.7.4 (msi- or exe-installer)
- OfficeSIP Messenger 1.8.2 (msi- or exe-installer)