SFH 1×3 Enhance is one of fitur of vendors, as I know Siemens can do SFH 1×3 Enhance.
let say :
sector 1 have A malist, sector 2 have B malis, and sector 3 have C malist, so for enhance, the MALIST become : A+B for sector 1, B+C for sector 2, and C+A for sector 3.
If we have many frequencies, better we use non hopping system. or better goes to SFH directly.