0124 - master code 
0718#(*)- hold - menu (ST11, SC10, V100 without SIM)
4268#(*)- hold - show code (ST11, SC10 without SIM)
*789(#)- hold - menu (V50, RX100 without SIM) 

Voxtel 
0124 - master code 
0718#(*)- hold - menu (ST11, SC10, V100 without SIM) 
4268#(*)- hold - show code (ST11, SC10 without SIM) 
*789(#)- hold - menu (V50, V300, RX100 without SIM)
