I bought this D-88N about 10 days ago. I was excited over the features but I must say that if you really don’t mind carrying two phones at a time than NEVER GO FOR IT.
Forget about the features which are not provided, but many features which are provided do not works.
1)Like you can not send sms received on GSM number by CDMA number and vice versa, but the feature is provided.
2)Phone is provided with feature of Timer for Auto Power On and Off. But at fix time it will ring like a alarm and will ask for confirmation. I mean if I have to confirm it manually each time than why the hell I need this function. I can switch it on and off myself.
3) You do not give delivery reports
4) You can’t save, sent sms in "outbox" folder
5) Speed Dial do not works
Now let us talk about what this phone do not have:-
1) No Flight/offline mode
2)While adding a number to phonebook you do not have "add to contact" feature.
I think this much is sufficient to explain the phone.