Change System Ringtone



GRP2602 + Yeastar S50

The problem is: Different ringtone not playing. Its saved to Account1, I can play it on the phone, the P-code in config of GRP2602 is P104=9 (9-is “my ringtone”) BUT it still rings with “system ringtone”.
Change “Ignore Alert-Info header” - not working.

I can’t add the P-code to “Yeastar S50” btw