Yealink technical note
Calling and Connected Line Identification Presentation on Yealink IP Phones
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About this technical note
About the Calling and Connected Line Identification Presentation on Yealink IP Phones
A Yealink technical note for the Yealink SIP-T33G and SIP-T33P (13 pages). This copy, last updated by Yealink on April 3, 2026, and you can read it right here or download it.
Some of the phones it covers (SIP-T33P) are end of sale or end of life. We still support them, and this document still applies.
SIP-T33P is end of sale. Support options, dates and replacementsWhat’s inside
- SIP Headers Defined in RFC
- FROM
- P-Preferred-Identity
- P-Asserted-Identity
- Remote-Party-ID
- Privacy
- UPDATE
- Calling Line Identification Presentation
- Configuring the Yealink IP Phones
- Calling Line Identification Presentation Enhancement
- Connected Line Identification Presentation
- Configuring the Yealink IP Phone
- Connected Line Identification Presentation Enhancement
Phones covered
Yealink phones this technical note covers
Related
More Yealink technical topics
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.