Dear
What would you suggest as optimal values for the followings


client.WorkerThreads = 10;
Change receive or send buffer size for the TCP socket:

client.ReceiveBufferSize = 32 * 1024 * 1024;
client.SendBufferSize = 32 * 1024 * 1024;
A larger buffer size might delay the recognition of ...

Do you see in wireshark that response was sent to the client?

Yes, I see the dlr receive message was sent to client in wireshark, but I see in my error logs that the Response.Header.Status is RCVTIMEOUT. after a couple of thousands of RCVTIMEOUT. the library was not sending response anymore (not ...

Hello, could you please help me. I am a subscriber. Thanks

Thank you for response. In fact I do not want to disable Response.

1. I can see the response from tcpdump/wireshark but my client can submit but can not receive successful response from server.
2. my clients also can not receive inbound dlr receipt messages, server get RCVTIMEOUT error though I ...

when does the library respond to client in evClientSubmitSmHandler.
what if the server failed to respond (confirmation) after client submit.

EDIT : because one of my client is not receiving confirmation after submit, but other clients are correctly receiving. please help

Hello,
I am sending Delivery receipt using the following


DeliverSmResp[] response = await serverClient.DeliverAsync(
SMS.ForDeliver()
.From(systemid)
.To(destination)
.Receipt(new Receipt
{
DoneDate = DateTime.Now,
State = dlr,
MessageId = req.clientMessageId,
ErrorCode = "0 ...

I tried to send using other smpp client url to my inetlab smpp server. I found that text ABCD_CDEF has been altered to ABCD§CDEF.

anything to configure?

Hi I have another issue another again. returns firewall IP address, anyway to get the oringinal ip of smpp client? Thanks in advance.

ok I ended up using remote endpoint. I have another issue as the following
Like in your sample code SmppServerSample.cs
1. client connect and bind
2. in bind even handler , server tried to send delivery messages that has not been delivered
3. but the client status is still Open not bound yet.
4 ...

Thank you for your reply,I thought about it but the clients may have same IP address .remote ports are changing every time client disconnect and disconnect. I save the messages in db before DLR and I am looking for a way to send DLR even the client is disconnected and connected again.
if the ...

I am a current subscriber, please help, thanks

I have the following issue.

My smpp server/gateway allows a single account with multiple connection. So far connecting is not an issue but how can I keep track of delivery report

1. client A (with same systemid/pass) submits a message with messageId 123
2. client B (with same systemId/pass ...