hello HB,
It would be interesting to tell us what is the situation just before thhe call drop. Indeed, your description is really vague 🙂
which serving cell ? which band ?
which UL & DL rxlev, rxqual, TA ?
what about estimated traffic load in each band ? congestion ?
what is the cause of call drops, in your QoS statistics ?
what about handovers before call drops ?
regards,
pix