Yes.

Dingtone supports group calling with up to 8 participants. To start group calling, you should first have a group. You can create a group on Dingtone by conforming to the following orders: Open Dingtone >> Tap “Contacts” >> Tap “Groups” >> Tap “Create Group” >> Fill a group name >> Tap “Continue” >> Select your friends to join the group. It’s OK they’re not Dingtone users yet.

As all your selected friends join in the group, you can have a group calling by tapping the “+” icon and tap “Call” to start group calling.