GSM/3G/4G/LTE/… enable or disable caller ID when calling
Posted by jpluimers on 2017/02/13
When testing the setup of a Fritz!Box 7490 with fiber connection, routing anonymous/withheld ISDN calls to a new answering machine I needed to test if only Caller ID calls were getting through.
The easiest was to do this from my mobile phone.
Basically all cellular networks based on GSM or derived technologies allow you to prefix any phone numbers with: