The IMS Service or IP Multimedia Subsystem Service allows the Android software of the phone such as the J7 to work without any issues with a vendor or carrier provided communication app.

Learn how to troubleshoot the error message “Unfortunately, IMS Service has stopped” with the #Samsung #Galaxy S6 Edge Plus (#S6EdgePlus). Understand the ...

Samsung began rolling out their Nougat update to the Galaxy ... that to fix the issue you simply have to switch Voice over LTE (VoLTE) on. Yep, that’s it. It apparently What is IMS Services?