Hi Developer.
I've just known the BCR-GUI have supported Huawei Call Recorder's File Pattern.
Here's are the ColorOS's one: (MP3 file format)
^{contact_name}-{date:year}{date:month}{date:day}{date:hours}{date:minutes}
The only difference is this placeholder {date:year} should be 2 digits instead of 4. (I wonder if that works without correction)
Thanks!