The device can manage a blacklist to restrict outcoming calls to listed phone numbers. In order to add a number to the blacklist use the command bladd, as shown in the following example:

12345,C:bladd:first_number_to_add_to_the_blacklist,C:bladd:second_number_to_add_to_the_blacklist

Response:

[“OK”,“OK”]

Multiple numbers can be sent in the same SMS. The answer will contain as much “OK” as added numbers.

To remove a number from the blacklist, use command blrem:

12345,C:blrem:number_to_remove_from_the_blacklist

Response:

[“OK”]

All numbers can be deleted at once with the following SMS:

12345,C:bldel

Response:

[“OK”]