Yealink technical note
Server Redundancy on Yealink IP Phones
A Yealink technical note for the Yealink SIP-T43U (28 pages).
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About this technical note
About the Server Redundancy on Yealink IP Phones
A Yealink technical note for the Yealink SIP-T43U (28 pages). This copy, last updated by Yealink on April 3, 2026, and you can read it right here or download it.
What’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 technical note covers
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