No, it is not the license restriction.

I think it is a firewall problem on the machine.

Hello Anil,

This is common problem MethodAsync().GetAwaiter().GetResult() lead to dead lock in windows form application .

I hope this article helps you to solve the issue.

Understanding Async, Avoiding Deadlocks in C#

Short answer: rewrite your classes to async await methods that return Task ...

Hello Asaf,

ConnectAsync method returns true when connection is successful and false when not. So your application knows the connection result. You can also check client.Status property, it should be Open when connected and Close when disconnected.

When you use connection recovery feature you ...

You need to create two SmppServer instances, one for normal connection and second for secure connection on different TCP port. You can attach to both instances the same event handler methods.

It is not correct to use User Data Header concatenation and MessagePayload parameter. You need to use SAR TLV Parameters with MessagePayload.
https://docs.inetlab.com/smpp/v2.9/arti ... ation.html

Which task do you mean?

SmppClient represents one SMPP session with SMS provider. Therefore if you need to establish multiple sessions with one or many providers you need to create the same number of SmppClient instances.

If you want to set MessageId for the SubmitSmResp in the method OnFullMessageReceived you need:
1. to disable response sending as it described in the link above in the server_evClientSubmitSm method;

submitSm.Response = null;

2. to create responses in the OnFullMessageReceived method for each ...

In the server_evClientSubmitSm event handler method the property submitSm.Response defines the response on the SubmitSm request. Library sends this response after the method is executed. For the MessageComposer this doesn't work.

You can disable automatically response sending and send it with ...

If you want to send "$£¥€" as 0x24A3A5A4 in Default data coding, you need to change the mapping this way:

client.EncodingMapper.MapEncoding(DataCodings.Default, new System.Text.Encoding(1252));

and when you send the message you need to use DataCodings.Default .

The same way you can set the ...

You need to change .NET encoding for Latin1 data coding in the client encoding mapper:

The value of the user_message_reference parameter can take only 2 bytes. Please use ushort type:

The smpp stream looks correct. I will try to examine this case today and understand why wireshark considers it as malformed packet.

vikarius wrote: Tue Jul 13, 2021 1:16 pm How can I switch on and use logging functionality?

https://docs.inetlab.com/smpp/v2.9/arti ... gging.html

Samples with some popular logging frameworks https://gitlab.com/inetlab/smpp-samples/

vikarius wrote: Tue Jul 13, 2021 1:16 pm We use 2.9.9 version.

Please update to latest version 2.9.12

some possible reasons of such behavior:
- smpp client waits until all received PDUs are processed.
- evDisconnected event handler method in the application does some processing