Which timeout value do you mean? SmppClient has two values where process sleeping and waiting for a while. SmppClient.Timeout gets or sets the maximum time in milliseconds waiting for response from SMSC. SmppClient.SubmitSpeed gets or sets the number of SUBMIT_SM packets per minute that can be send ...

There are two events evReceiveData and evSendData where you can get transfered byte arrays.

Please try version 1.2.6

I'll do my best to implement this in the next release.
I'll add two new events evDeliverSmComplete and evDataSmComplete.

SmppClient sends DeliverSmResp packet after evDeliverSm event.
You did not receive SubmitSmResp because SMSC still waits DeliverSmResp.
Solution could be to add evDeliverSmComplete which will be raised after sending response packet.
What do you think?

SMPPCLIENT_RCVTIMEOUT error arises when SMSC did not response after 120 seconds. SmppClient has propery Timeout with default value 120 seconds. Do you need to send concatenated message? Which SubmitMode do you use? Payload or ShortMessage? Try both. SMSC servers work different. Can you send me the l...

Fixed in the version 1.2.5
http://www.inetlab.ru/Download/SmppClient_1.2.5.zip

byte[] SubmitSM.Serialize(SubmitSM submit)
SubmitSM SubmitSM.Deserialize(byte[] data)

in version 1.2.4 I have implemented SubmitSm object serialization methods.
Please check it.

You can use evDelivery or evData events to receive SM from SMSC.
Please check sample application souce code.

Sorry, it was my fault. I have uploaded correct assembly. Please download it again. In AddressRange property you can use regular expressions. I'm posting some examples from specification. ^1234 The ‘^’ char is used to represent “beginning with”, therefore ^1234 is interpreted as MSISDNs beginning wi...

SmppClient.AddressRange has been added in the version 1.2.3.
Please download it from http://www.inetlab.ru/Products/ALT.SMS.SmppClient.aspx

In the new version 1.2.3 I have added SmppClient.Query method.
I appreciate your effort in testing this new method. Please let me know if it works for you.

Each SMPP packet has method GetBytes which returns byte array of this packet. Opposite serialization currently not implemented.

Component will sleep until next message can be sent. Even if submit status will be ESME_RTHROTTLED, component will repeat submit after sleep.