ⓘ Stronger performance
Faster startup speed, faster upgrade speed.
Improved chip performance and better sound quality with Yealink’s self-developed Codec.
Up to 20 concurrent calls.
Support two Intercom per handset.
Strong scalability: more advanced functions can be supported in the future.
Clearer audio experience
The signal is improved and can adapt to more complex deployment environments (increased by more than 10%).
Support Yealink's self-developed algorithm Codec, which can support anti-packet loss, anti-interference, and stable calls in complex environments
Codec：Opus/G722/AMR-WB(optional)
More Handsets & Calls
UP to 10 Handsets
Up to 10 SIP Account；
Assignment 10 account per handset
WB：5 active handset / NB：10 active handset (2 calls per handset)
Advanced Features
DDPhone(T54W+DD10K) supports BLF；
No Perception Upgrade(Transfer firmware in the background)
Support alarm: with W59R to achieve alarm function
Support XML Browser function
