Yealink SIP-T56A
Smart business phone
End of Life. Sales ended March 31, 2020. Support ended March 31, 2025. See the EOL notice and replacement options- Brand
- Yealink
- Series
- T5 Series
- Model
- SIP-T56A
- Status
- End of Life
- End of Sale
- March 31, 2020
- End of Life
- March 31, 2025
- Documents
- 56 manuals & files
- Knowledge base
- 5 articles
End of Life · still supported
We still support the Yealink SIP-T56A
Yealink has stopped supporting the SIP-T56A, but plenty are still in use. The Tech Team™ keeps them working, and helps you move on only when it makes sense.
Setup & provisioning
Add, reset or re-provision SIP-T56A phones on your system, including new accounts and line keys.
Firmware & security
Install the last firmware Yealink released for the SIP-T56A and lock down its settings.
Latest firmwareTroubleshooting
Registration failures, one-way audio, dropped calls, boot loops and factory resets.
Replace when you're ready
Matched to a current Yealink model and set up with your extensions and buttons.
Replacement optionsOverview
About the Yealink SIP-T56A
The Yealink SIP-T56A is part of Yealink’s T5 Series: smart business phone. This page collects its official documentation, firmware and how-to articles in one place.
Gallery
SIP-T56A product photos
Documents
SIP-T56A manuals & downloads
Datasheets
3User Guides
4- Yealink MP56&T58A&T56A Skype for Business Edition User Guide V9.16PDFDec 10, 2025
- Yealink SIP-T58V & T58A & T56A Smart Media Phones User Guide V83 5PDFOct 22, 2025
- Yealink MP58&MP58-WH&MP56&T58A&T56A Skype for Business Edition User Guide V9.17PDFOct 21, 2025
- Yealink MP58&MP58-WH&MP56&T58A&T56A Teams Phone Edition User Guide V15.1PDFOct 21, 2025
Admin Guides
2Quick Start Guides
5- Yealink SIP-T56A Quick Start Guide V83 5 DE ES FRPDFDec 29, 2025
- Yealink SIP-T56A Quick Start Guide V83 5PDFDec 29, 2025
- Yealink SIP-T56A Quick Start Guide V83 5 ITPDFDec 29, 2025
- Yealink T56A Skype for Business Quick Start Guide V9.5PDFDec 29, 2025
- Yealink T56A Teams Audio Phone Quick Start Guide V15.36PDFDec 29, 2025
Deployment
4- Deploying Yealink IP Phones for Using with Skype for Business Server V9.16PDFDec 10, 2025
- Yealink Skype for Business HD IP Phones Auto Provisioning Guide V9.11PDFDec 10, 2025
- Yealink SIP IP Phones Auto Provisioning Guide V1.0PDFDec 10, 2025
- Yealink SIP Phones AutoProvisioning Template V85.5ZIPDec 10, 2025
Other Downloads
27- Yealink SIP IP Phones XML Browser Developer's Guide V1.0PDFJun 15, 2026
- Yealink Configuration Encryption Tool User Guide V1.2PDFApr 3, 2026
- Calling and Connected Line Identification Presentation on Yealink IP PhonesPDFApr 3, 2026
- LDAP Directory on Yealink IP PhonesPDFApr 3, 2026
- Recovery Mode on Yealink IP Phones V86PDFApr 3, 2026
- Server Redundancy on Yealink IP PhonesPDFApr 3, 2026
Show 21 more other downloadsShow fewer
- OpenVPN Feature on Yealink IP Phones V1.0PDFApr 3, 2026
- Using Security Certificates on Yealink IP Phones V1.0.pdfFILEApr 3, 2026
- Using Ribbon Features on Yealink IP Phones V1.0PDFApr 3, 2026
- Using Enhanced DSS Keys on Yealink IP Phones V1.0PDFApr 3, 2026
- VLAN Feature on Yealink IP PhonesPDFApr 3, 2026
- Yealink 802.1X AuthenticationPDFApr 3, 2026
- Yealink Configuration Generator Tool User Guide V86PDFApr 3, 2026
- Instructions on Yealink's SDK for Yealink Android Phones V1.4PDFDec 3, 2025
- Yealink IP Phone Features Integrated with BroadSoft UC-One User Guide V1.3.pdfFILEOct 22, 2025
- Yealink SIP Phones Integrated with Metaswitch Configuring Guide V1.5PDFOct 22, 2025
- Yealink SIP Phones Integrated with Metaswitch CommPortal Phone Applications User Guide V1.6PDFOct 22, 2025
- Yealink Regulatory Notice V1.2PDFOct 22, 2025
- Yealink Limited WarrantyPDFOct 22, 2025
- Yealink Limited Warranty for the European Union and UKPDFOct 22, 2025
- Yealink IP Phones Deployment Guide for BroadSoft UC-One Environment V1.6PDFOct 22, 2025
- Using Security Certificates on Yealink Skype for Business HD IP Phones V9.11PDFOct 21, 2025
- VLAN Feature on Yealink IP Phones V9.11PDFOct 21, 2025
- Yealink Hybrid-mode Feature Compatible with AudioCodes SBC V15.3PDFOct 21, 2025
- Accessibility Features on Yealink DevicesPDFOct 21, 2025
- Teams-Tested headset list compatible with Yealink IP phonePDFOct 21, 2025
- Yealink Teams Phone Setup Guide with Microsoft Configuration PlatformsPDFOct 21, 2025
Firmware
SIP-T56A firmware & release notes
- T56A Teams Audio Phone 58.15.0.168 - FirmwareLatestROMReleased Dec 29, 2025 Download
- SIP-T56A 58.83.0.15 - FirmwareROMReleased Dec 29, 2025Withdrawn by Yealink
Knowledge base
SIP-T56A how-to articles
Related
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SIP-T52S
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Support & downloadsNeed help with your SIP-T56A?
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 (source) and provided here for reference by smplVoice. Firmware and documents are Yealink’s original, unmodified files.