Yeastar Technical support Team (China Office)will start to celebrate the Mid-Autumn Festival from 13th to 15th, Sep 2019. If there is any support request, feel free to deliver it in https://support.yeastar.com or send email to firstname.lastname@example.org. We will reply as soon as possible.
More information about the Mid-Autumn Festival, visit here: https://www.travelchinaguide.com/essential/holidays/mid-autumn.htm
Yeastar Support Team