To withhold your Caller ID on a call-by-call basis, dial #31# followed by the destination number (for example: #31#0722243300) and then press Call.

If you want to block your Caller ID for all outgoing calls, you can usually find this option in your phone's settings. Navigate to your phone settings, look for the "Calls" or "Phone" section, and then locate "Call settings" or a similar option. From there, you should find a "Caller ID" or "Show my caller ID" setting, where you can choose to hide your Caller ID for all calls.

Keep in mind that menu names and options may vary based on your phone model and software version.

Disclaimer:

Please note that the effectiveness of caller ID blocking features may vary based on your mobile carrier, phone model, and software version. While the instructions provided are commonly used, we cannot guarantee that they will work in all cases. Additionally, certain carriers or regions may have restrictions on the use of caller ID blocking. We recommend checking with your mobile carrier or referring to your phone's user manual for specific guidance. The use of Caller ID blocking is at your own discretion, and Cellular Israel is not responsible for any consequences or limitations associated with its use.