The DECT cordless phone beeps 4-5 times when a call is answered.

How do I resolve this.


This is a known issue with the W60x, & W70x bases and W56, W59 handsets.



Here is the process to remove the "beep" sound when calls are answered.
Upgrade both the base and handsets to the following versions
W60B: https://yl-us-dmfile.yealinkops.com/firmware/1ab0514acf2b45f7834abe6266e06611/1666787730677/W600-77.85.0.73.rom
W70B: https://yl-us-dmfile.yealinkops.com/firmware/55ca027d370249f9a2a02607d980831f/1663058237893/W70B-146.85.0.54.rom
W59R: https://yl-us-dmfile.yealinkops.com/firmware/e37ff5d778574365b8703802bf206f89/1662430447901/W59R-115.85.0.64.rom
W73H: https://yl-us-dmfile.yealinkops.com/firmware/5b43c8d3871e47adaa45c66d15ee5d01/1666593737953/W73H-116.85.0.47.rom
W56H: https://yl-us-dmfile.yealinkops.com/firmware/b557724ebd3a40fbaeace05e0a295afa/1666254137197/W56H-61.85.0.67.rom
W78H: https://yl-us-dmfile.yealinkops.com/firmware/370a05cc11f246e38526a9ff1beec6e2/1666579237838/W78H-16.85.0.16.rom

Then apply the "phone_setting.outgoing_call_answer_tone.enable = 0" config file (attached)


If the above config update doesn't work can you try this
Change the above config command to = 1 and update
Then change back to = 0 and update.