[Hilo] How to disable the URC of CALL?

Answer: If you want to disable URC of a data/voice call, you can set <ATPSCHRU =510>. For example:
AT
PSCHRU=510 —To disable the URC for a data/voice call
OK
ATA —Answer the voice call
OK

You can set < AT*PSCHRU = > to forbid other URC display. Here’re the details:
: used to filter URCs
0: Disable all URC
1 (CALL related URC): RING, CRIGN, CCWA, CLIP, COLP, CSSI, and CSSU
2 (SMS related URC): CMT, CMTI, CDS
4 (CBM related URC): CBM
8 (CIEV related URC): CIEV
16 (Network related URC): CREG, CGREG
32 (SS related URC): CUSD
64 (INIT related URC): PSREADY
128 (DBG related URC): PSDBG
511: By default, all the URC is enabled