Yes, it is possible to make your Samsung ring for longer by modifying the ringtone settings on your device. Follow these steps to increase the duration of your ringtone:
1. Open the 'Settings' app on your Samsung device.
2. Scroll down and tap on 'Sounds and Vibration'.
3. Tap on 'Ringtone' option.
4. Select the ringtone you want to use and then tap on the 'gear' icon next to it.
5. In the ringtone settings, look for the 'Duration' option and increase the length to your desired duration.
6. Save the changes, and voila! Your Samsung will now ring for the new specified duration.
Keep in mind that some Samsung devices have a maximum duration limit for ringtones. If your desired duration is longer than the maximum limit, you might need to use third-party apps to achieve this.