1 FSK/DTMF compatible.
2 Telephone 32 set, go to give or get an electric 10 set.
3 The inside places to defend the IDD switch.
4 Native percolation area.
5 Telephone, go to give or get an electric shock the number can store, turn over to check, delete, call back.
6 The IP stirs the number function.
7 The bright degree of LCD regulates.