Skip to content
smplVoice

Yealink technical note

Calling and Connected Line Identification Presentation on Yealink IP Phones

A Yealink technical note for the Yealink SIP-T31W (13 pages).

Loading document preview…

About this technical note

About the Calling and Connected Line Identification Presentation on Yealink IP Phones

A Yealink technical note for the Yealink SIP-T31W (13 pages). This copy, last updated by Yealink on April 3, 2026, and you can read it right here or download it.

What’s inside

  1. SIP Headers Defined in RFC
  2. FROM
  3. P-Preferred-Identity
  4. P-Asserted-Identity
  5. Remote-Party-ID
  6. Privacy
  7. UPDATE
  8. Calling Line Identification Presentation
  9. Configuring the Yealink IP Phones
  10. Calling Line Identification Presentation Enhancement
  11. Connected Line Identification Presentation
  12. Configuring the Yealink IP Phone
  13. Connected Line Identification Presentation Enhancement

Phones covered

Yealink phones this technical note covers

FAQ

Questions about this document

Quick answers, and The Tech Team™ is a call away if you need more.

Need help with your SIP-T31W?

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.