An outgoing call will be trapped by my app and the phonenumber picked out. After loading app-settings, search for matching contacts is performed. It successful, various database-queries will be executed and interpreted. Depending on the result, the selected prefix-code will be set in front of the picked number. The original call will be cancelled and a new one with the modified number is getting started. The feedback shows the result. The example to the right: your ID will be hidden, because mode is set to hide always The pic shows Francesca hiding (and eating) behind a tree.
This visual feedback just shows modification of the number with the selected prefix. It’s up to you, to check the correctness of the prefix within your network. To help me extending the prefix-code list, send information about yours to nerdy (at)sheeptec.com!

Francesca hiding