Appendix:
Supplementary
Services
Call Forward Busy function
1.Call forward busy on,
press "*24*" or “*67*” and key in forward phone number(phone B) , then
press "#”. If succeed, user will hear “dododo”;
2.Call forward busy off,
Press "#24#" or #67#”. If succeed, user will hear “dododo”;
3.Call forward busy Status,
press "*#24#" or *#67#”. ON: continuous low-pitched tone
；
OFF: continuous high-pitched tone.
Call Forward unconditional Function
1.Call forward unconditional on
, press "*21*" and key in forward phone number(phone B) , then
press "#". If succeed, user will hear “dododo”;
2. Call forward unconditional off.
Press "#21#". If succeed, user will hear “dododo”;
3. Call forward unconditional Status.
Press "*#21#". ON: continuous low-pitched tone
；
OFF: continuous high-pitched tone.
Call Forward no reply Function
1.Call forward no reply on:
press "*61*" and key in forward phone number(phone B) , then press "#".
If succeed, user will hear “dododo”;
2.Call forward no reply off:
Press "#61#". If succeed, user will hear “dododo”;
3.Call forward no reply Status:
press "*#61#". ON: continuous low-pitched tone.
OFF: continuous high-pitched tone.
Note. The no reply period before call forwarding ton nominated number is 20sec.
Call Forward unreachable Function
1.Call forward unreachable on:
press "*62*" and key in forward phone number(phone B) , then
press "#". If succeed, user will hear “dododo”;
2. Call forward unreachable off,
Press "#62#"
2