Why do 1:1 calls always display “Connecting,” but a connection cannot be established?

If this symptom occurs, either push notifications aren’t working properly on your contact’s phone, or there is a problem concerning background activity.

Please ask your contact to follow the troubleshooting instructions for Android (Samsung, Huawei, Xiaomi, Sony, OnePlus, Gigaset, Ulefone Armor, Doogee, etc.) or iOS.