Message delivery is best effort, so there are no guarantees that a message will actually be delivered to its recipient and delay or complete loss of a message is not uncommon, particularly when sending between networks. Users may choose to request delivery reports (simply add *0# or *N# to the beginning of your text message), which can provide positive confirmation that the message has reached the intended recipient.
I tried adding a *0# to my SMS and i didnt receive any confirmation .. I particularly interested in knowing the frame encoding thats done to send a SMS. What are the control words that are sent along with an SMS, etc. What does one need to do if a standard is to be proposed. Is it like IETF where a draft is submitted, or is it something else. Any pointers to the appropriate mailing list? Regards, Glen