Jitter buffer clarifications

[Andrew_Yealink]

Hi Ting Fung,
This is Andrew from Yealink Technical Support Team, nice to work with you.

Could you kindly tell me what the type and firmware of your IP Phone?
And could you tell me why you want to disable the Jitter Buffer?

The jitter buffer, located at the receiving end of the voice connection, intentionally delays the arriving packets so that the end user experiences a clear connection with very little sound distortion. I suggest that you could make the delay time smaller, rather than disable the feature. You can log in the web ui of the phone , go to Setting->Voice to adjust the delay time.

Any question, please let me know.
Best Regards,
Andrew