From the Yeastar instance.
Goto Auto provisioning>Phones>Add
Enter details
Browse to Grandstream GAPS - https://gaps.grandstream.com
Login with your user name and password, if you do not have an account contact helpdesk@commsplus.com.au and request one.
Create a new profile for your Yeastar instance
Give profile a name
Select HTTPS as Config upgrade
Paste the URL as copied from Yeastar provisioning ( less the https://, as the config path.
Click OK
Browse to Device Management> Allowed Provisioned Devices. This list is automaticually updated with devices you have purchased from Commsplus. Check that your devices are in the list. If not contact support team -helpdesk@commsplus.com.au.
Browse to Device Manager>provision new device. Enter all the MAC addresses associated to your yeastar instances, select created profile and click submit
Phones will by default contact GAPS and get redirect script.
Handsets will then contact yeastar instance and download config file.