FreeDMR Servers send the Callsign every 15 minutes to comply with some countries Regulations.
In Pi-Star Hotspots this can be suppressed in the Options string e.g. Voice=0.
There is no facility in the OS Options area to do this.
Can this code please be added in Options for OS 2, 3 & 4
Best 73 Mike

You can manually edit the options field at the bottom of the Homebrew/MMDVM connector settings. Make sure Advanced mode is enabled at the bottom right of the web interface.

    HA2NON
    Hi, I tried to make changes to the raw options line by adding Voice=0; to the end of the line.
    I hit save but the amended option would not save.
    I then tried pasting in a complete new options line firstly removing any info that had been added in the boxes.
    TS2=505,5050,530;VOICE=0;TIMER=5;
    The new line would not save.
    Further help appreciated

    Thank you for reporting the issue, we've fixed it in (currently beta) firmware v45. Now you can enter custom options.

      HA2NON
      Thankyou Team.
      I note you mention V45 Beta which is OS4. Has the change been made to OS2 (currently stable V86) and probably OS3 also?
      Best 73 Mike

      We're currently investigating how we could change this on the OS3 (and the OS2).

      Please try the latest beta firmwares v66 (OS3) and v87 (OS2).