because in the specification 3.4 SubmitSmResp has no TLVs.

ServiceType should be not longer than 5 symbols.

I think problem is in the Submit method. This call is synchronous, and blocks the current thread of execution until a response is received. I have to think about BeginSubmit, EndSubmit methods and SubmitCompleted event for asynchronous process.

Your password should be not longer than 8 symbols.

hi rag123456,

when you receive DeliverSm you must check property SequenceNumber, if it is greater than zero, then it is multipart message. From propery TotalSegments you can get total parts number.

When you get no response of EnquireLink, you need to reestablish connection and bind with SMSC. In my application I stop all threads, reconnect SmppClient and run all threads again. Sometimes you need to wait several seconds before reestablishing connection because SMSC return ESME_RBINDFAIL.

It looks like you connect to SMSC which use SMPP version greater than 3.4.
Your SMSC sends submit_sm_resp with TLV options. I'll try to extend my parser to avoid such errors.

Could you show your log from SmppClientDemo?

SubmitText method returns array of responses. The number of elements depend of text length. SubmitSmResp[] resp =client.SubmitText( SubmitMode.ShortMessage, 0x05, 0x01, "SMPP", 0x01, 0x01, Mobile, DataCodings.UCS2, Text); if (resp[0].Status == CommandStatus.ESME_ROK { MessageBox.Show(resp.MessageId,...

Hi shuriz,

Sorry for delay.
ESME_RINVDSTADR is Invalid Dest Addr.
ESME_RMSSQFUL is Message Queue Full.

Try to send your messages using SmppClientDemo. There is complete log.
If problem still exists send me all from Log textbox.

try to delete these line from your code
SubmitSm data = new SubmitSm();
SubmitSmResp resp = client.Submit(data);
They mean that you send empty SubmitSm packet.

SubmitSmResp resp = client.Submit(data);

if (resp.Header.Status == CommandStatus.ESME_ROK)
{
MessageBox.Show(resp.MessageId);
}
else
{
MessageBox.Show("Error");
}

You can use method SmppClient.SubmitText. It originates SUBMIT_SM packets and send them to SMSC. There are two modes to send concatenated messages, using short_message field and using optional TLV parameters. Try both SubmitMode and determine which mode is suitable to your SMSC.

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