In S26 series with Egypt CSC and one UI 8.5. Users noticed that VoLTE toggle button was removed only for Vodafone Egypt. I wanted to prove the concept, so I go the CSC files and decoded customer_carrier_feature.json. I found the attached which seems that is removing the button by adding "-voltecall" . However this is associated to the canonical_id": "30276". Now, how can I prove that this canonical_id corresponds to Vodafone Egypt. Where I can find this mapping ? In which file and in which path ?