Yealink knowledge base
Security Features
728 Yealink how-to articles on security features. Narrow by phone model or search within the topic.
13 articles for SIP-T42U Clear
- ArticleAuto Logout TimeOpenUpdated Nov 3, 2025SIP-T42U
- ArticleCall Quality Statistic (QoE)OpenUpdated Jun 3, 2026SIP-T42U
- ArticleEmergency AlarmOpenUpdated Jan 6, 2026SIP-T42U
- ArticleEncrypting and Decrypting FilesOpenUpdated Dec 27, 2025SIP-T42U
- ArticleIncoming Network Signaling ValidationOpenUpdated Nov 3, 2025SIP-T42U
- ArticlePanic ButtonOpenUpdated Nov 3, 2025SIP-T42U
- ArticlePhone LockOpenUpdated Nov 3, 2025SIP-T42U
- ArticleSecure Real-Time Transport Protocol (SRTP)OpenUpdated Dec 27, 2025SIP-T42U
- ArticleSecurity Control CenterOpenUpdated Jun 3, 2026SIP-T42U
- ArticleSimple Certificate Enrollment ProtocolOpenUpdated Nov 3, 2025SIP-T42U
- ArticleTransport Layer Security (TLS)OpenUpdated Nov 3, 2025SIP-T42U
- ArticleUSB Port LockOpenUpdated Nov 3, 2025SIP-T42U
- ArticleUser and Administrator IdentificationOpenUpdated Dec 27, 2025SIP-T42U
Articles are hosted by Yealink and open on support.yealink.com.
Topics
Other topics
Call Features 2,105Customize Your Phone 770Audio Features 748Security Features 728Directory and Call Log 690Auto Provisioning Guide 628Network Configurations 618Bluetooth 545Troubleshooting 533Phone Customization 515General Features 452Advanced Features 443Advanced Call Features 348System Applications for VP59, T58A, T58W, T88W (Pro), T88V Pro 336Audio Settings 312Getting Started 300Directory 297Use DECT Handsets with Phone 281Use CPW65 with CP965 273Handset Customization 262Call History 254Device Customization 247Account Settings 244Wireless Network 217Enter Characters 216Using DECT Handsets with Desk Phones 210Perform Teams Call Operations 209Maintain Phone 193Network Connectivity 179Other 175Troubleshooting Methods 130Phone Provisioning 100XML Customization Guide 96Teams Device Settings 95Device Provisioning 95Use CP965 Star Connection Feature 93Perform Teams Meeting Operations 89Update Firmware 78Optional Accessories with Phone 61Hybrid Mode 60
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Yealink and Yealink product names are trademarks of Yealink Network Technology Co., Ltd. Product information, images and documents are published by Yealink and provided here for reference by smplVoice. Firmware and documents are Yealink’s original, unmodified files.

