By clicking a download link, you consent to respective software license agreement. You must uninstall existing version and delete installation directory of TekRADIUS in order to upgrade from a version prior to 4.8.1.
You may receive false positive warnings from your anti-virus/anti-malware systems due to code obfuscation methods we have deployed. Please inform us for such cases.

Uninstallation Instructions
  • Extract contents of distribution zip file file to a temporary directory, run Setup.exe from the distribution to install. Uninstall previous version if you upgrade from an earlier version.
  • Double click program icon at "Add or Remove Programs" in the Control Panel to uninstall.

ProductFreeware limitationsVersion
Download TekRADIUS
(License agreement)
Following features are not supported in free edition;
  • Dynamic Self Signed Certificate Creation for PEAP Sessions
  • NTLM authentication for MS-CHAP authentication methods (Authentication of Windows domain users)
  • Regular Expression based attribute matching
  • OTP (One Time Password, RFC 2289)
  • Dynamic IP address assignment
  • TLS Transport (RFC 6614) authentication
  • VoIP Billing (SP)
  • HTTP Reporting and User Management Interface (SP)
  • Google Authenticator Support (SP)
  • Alphanumeric RADIUS client entry (SP)
  • Specifying free usage periods for users(SP)
  • Sending Packet of Disconnect (PoD) or executing user defined session kill command when a user consumes all credit (SP)
Download TekRADIUS LT
(License agreement)
Same as TekRADIUS5.4.0
Download TekSIP
(License agreement)
Freeware version allows maximum 3 SIP endpoints registration and 3 simultaneous SIP sessions. Enterprise edition allows upto 100 simultaneous registration and SIP sessions. Following features are not supported in free edition;
  • SDP Manipulation
  • TLS Transport
  • SMPP Gateway
  • Lync Proxy (SP)
  • SRTP -> RTP interworking (SP)
  • WebRTC Media Gateway (SP)
  • Unlimited number of simutalneous SIP registrations and sessions (SP)
  • Route entries to registered endpoints (SP)
Download TekIVR
(License agreement)
Freeware version allows maximum 2 simultaneous SIP calls and does not support querying Lync client presence Status.2.5.5
Download TekFax
(License agreement)
Freeware version supports receiving maximum 2 fax pages.1.8.2
Download TekConSer
(License agreement)
Free version of TekConSer supports maximum 3 peers per conference.1.5.2
Download SipCLI
(License agreement)
Free version of SipCLI supports maximum 3 second of playout and maximum 3 different actions in scenario definitions. Free version can be run a single instance application and Inband DTMF detection and generation and SIP Info method for DTMF transport is not supported in the free version. Commercial edition of SipCLI supports SRTP with TCP and TLS transports.2.8.4
Download SIPob
(License agreement)
Free version of SIPob supports maximum 3 second of playout. Free version can make only a single call at a time.1.2.2
Download TekCERT
(License agreement)
Free version of TekCERT supports only sha-1withRSAEncryption key algorithm and cannot generate certificates valid for more than 30 days. Commercial version supports sha256withRSAEncryption, sha385withRSAEncryption and sha512withRSAEncryption key algorithms.2.4.1
Download TekTape
(License agreement)
Free version of TekTape supports maximum 3 minutes of monitoring.2.3.3
Download ARPMiner
(License agreement)
Free version does not support RADIUS AAA and PPP encryption and allows maximum 5 client session.3.1.1
Download WebKilit
(License agreement)
Free edition allows maximum 10 minutes of session duration for each user session. URL redirection is allowed only for one URL in freeware edition.2.2.1
Download TekENUM
(License agreement)
Freeware edition allows maximum 4 digits length matching.1.3.1
Download TekSIP Route Server
(License agreement)
Freeware edition allows maximum 4 digits length matching.1.3.1
Download TekOTP
(License agreement)
Download Tekaba
License agreement)
Freeware version allows only one simultanous call.1.2.2
Download TekPhone
(License agreement)
Download TelCLI
(License agreement)
Freeware version supports maximum 3 actions in scenarios and runs only one instance at a time.1.1.1
Download SMPPCli
(License agreement)
Freeware edition of SMPPCli limits text message with 10 characters and can be run only one instance at a time.1.2.1
Download TekWiFi
(License agreement)
Download TekSMTP
(License agreement)
Freeware version allow one rule set with maximum 5 rules. SPF is available only in commerical version.1.4.1
Download ENUM Resolver
(License agreement)
Download TekRecorder
(License agreement)
Download DBConverter
(License agreement)

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