Fritzbox 7270 v3 and CLIR

[atux_null]

Hello. I have a router that provides me 2 numbers A & B, one in each fxs port.

For billing reasons, I have set up the outgoing call to show only number A. Then every call I do, I type the #31# before each number. Then it does not show any caller id

So far so good.

I would like to drop to type every time the #31# and make it automatically. I have a spare fritzbox 7270c3 international edition. Is there any way to configure it to work for this?

 

[KunterBunter]

Enabling caller ID blocking for analog and cordless telephones

1. Click "Telephony" in the FRITZ!Box user interface.
2. Click "Telephony Devices" in the "Telephony" menu.
3. Click the (Edit) button for the respective telephone.
4. Click on the "Telephony Device Features" tab.
5. Enable the option "Calling line identification restriction (CLIR)".
6. Click "Apply" to save the settings.

Source: https://fritz.com/en/apps/knowledge...ng-your-telephone-number-from-being-displayed