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Yealink SIP IP Phones XML Browser Developer's Guide V1.0
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About this document
About the SIP IP Phones XML Browser Developer's Guide V1.0
A Yealink document for the Yealink SIP-T28P (130 pages). This is version 1.0, last updated by Yealink on June 15, 2026, and you can read it right here or download it.
The SIP-T28P 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-T28P is end of life. Support options, dates and replacementsWhat’s inside
- About This Guide
- Who should use this guide?
- XML and Yealink IP Phones
- What is XML?
- XML Format
- Functionality
- How does it work?
- Phone-initiated application
- Server-initiated application
- XML display control and keys on Yealink IP phones
- Yealink IP Phone XML Objects
- XML Object Definitions
- TextMenu Object
- TextScreen Object
- InputScreen Object
- Directory Object
- Status Object
- Execute Object
- Configuration Object
- FormattedTextScreen Object
- ImageScreen Object
- ImageMenu Object
- Customizable Soft keys
- XML Objects Pushed to the Phone
- Some Development Guidelines
- Configuring the HTTP Server
- Configuring the Push XML Server
- Yealink IP Phone XML Configurations
- Configuring an XML Browser Key
- Configuring the XML Authentication
- Configuring the Block XML in Calling
- Configuring the Push XML Server Address
- Configuring the XML SIP Notify
- Configuring the Default Input Method
- Configuring the Loading Tip Delay
- Configuring the XML Phonebook Search Delay
- Troubleshooting
- Troubleshooting Tools
- Parsing Error Debug Example
- Appendix
Phones covered
Yealink phones this document covers
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FAQ
Questions about this document
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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.