Yealink document
Server Redundancy on Yealink IP Phones
Loading document preview…
About this document
About the Server Redundancy on Yealink IP Phones
A Yealink document for the Yealink SIP-T23G (28 pages). This copy, last updated by Yealink on April 3, 2026, and you can read it right here or download it.
The SIP-T23G has been discontinued by Yealink, but it's still widely used, and this document is still the reference for setting it up. The Tech Team™ supports end-of-life Yealink phones and can help you plan a replacement when you're ready.
SIP-T23G is end of sale. Support options, dates and replacementsWhat’s inside
- Introduction
- Glossary
- Server Redundancy Implementation
- Phone Registration
- Server Domain Name Resolution
- Configuring Yealink IP Phones
- Configuring Server Redundancy via Web User Interface
- Configuring Server Redundancy Using Configuration Files
- Using Server Redundancy on Yealink IP Phones
- Appendix A: DNS SRV
- Appendix B: Static DNS Cache
- Specifying DNS A Parameters
- Specify DNS SRV Parameters
- Specify DNS NAPTR Parameters
- Example Configuration
Phones covered
Yealink phones this document covers
Related
More Yealink other downloads
- PDFYealink SIP IP Phones XML Browser Developer's Guide V1.0DownloadUpdated Jun 15, 2026SIP-T23G
- PDFYealink Configuration Encryption Tool User Guide V1.2DownloadUpdated Apr 3, 2026SIP-T23G
- PDFCalling and Connected Line Identification Presentation on Yealink IP PhonesDownloadUpdated Apr 3, 2026SIP-T23G
- PDFLDAP Directory on Yealink IP PhonesDownloadUpdated Apr 3, 2026SIP-T23G
- PDFRecovery Mode on Yealink IP Phones V86DownloadUpdated Apr 3, 2026SIP-T23G
- PDFOpenVPN Feature on Yealink IP Phones V1.0DownloadUpdated Apr 3, 2026SIP-T23G
- FILEUsing Security Certificates on Yealink IP Phones V1.0.pdfWithdrawn by YealinkUpdated Apr 3, 2026SIP-T23G
- PDFUsing Ribbon Features on Yealink IP Phones V1.0DownloadUpdated Apr 3, 2026SIP-T23G
FAQ
Questions about this document
Quick answers, and The Tech Team™ is a call away if you need more.
Need help with your SIP-T23G?
The Tech Team™ can provision, update and troubleshoot your Yealink phones, and move your office onto smplVoice cloud voice.
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.