InetLab - Mobile Internet Solutions

You need to enable ProxyProtocolEnabled for the client in the handler method for the event evClientConnected smppServer.evClientConnected += (sender, client) => { client.ProxyProtocolEnabled = true; }; after that the RemoteEndPoint of the client returns the IP address behind the proxy.

SendSpeedLimit can only help to prevent the throttling error ESME_RTHROTTLED

When you get the Message Queue Full error status ESME_RMSGQFUL, you have to limit the number of SMPP requests waiting for response with the property SendQueueLimit

You can use

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 DeliverAsync(..).ContinueWith(..)

See example

It looks like the property ScheduledDeliveryTime or ValidityPeriod has incorrect value in SubmirSm instance. Could you help me to reproduce the error? I think the same exception should be thrown when you set the values for SubmitSm instance and try to serialize it ver byteArray = submitSm.Serialze(_...

Hello, Inetlab.SMPP library provides two extension methods CanBeDecoded , CanBeEncoded https://docs.inetlab.com/smpp/v2.9/api/Inetlab.SMPP.Encodings.EncodingExtensions.html With these methods you can check if text can be encoded with specified encoding or if the byte array can be decoded with the en...

Hi didimo,

Why do you need to send Delivery Receipt in UCS2 data coding?
Library sends DLR as single PDU. The Receipt you created is to long. Maybe you have to remove receipt.Text or make it shorter.

Hi arip, 1) This is an issue on the SMPP provider. Both MessageIds must use the same format for correlation purpose. 2) This approach may function properly when dealing with a single SystemId, as long as the SMPP provider remembers the SMPP session on which the SUBMIT_SM was received. By utilizing t...

for the SmppServer you can change this option with code

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_server.ConnectionOptions.SinglePDUinTCPPacket = true;

Hello ritik,

You can disable this feature with following code:

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bool conected = await _client.ConnectAsync(new SmppConnectionOptions
            {
                RemoteEndPoint = remoteEndPoint,
                SinglePDUinTCPPacket = true
            });

Does the Proxy supports Proxy protocol https://www.haproxy.com/blog/haproxy/proxy-protocol/ ?

If all the responses are present in the library log, then they have been processed correctly.
It looks like there is a deadlock in your application. Is it a Windows Forms or an ASP.NET application?

I hope this article helps. Understanding Async, Avoiding Deadlocks in C#

Can you find the response in the library log with the same sequence?
I mean the log event starting with "PDU Received:"

Do you use Wait() or .Result for Async methods?

After waiting for 6 minutes, it still didn't end

Is the ResponseTimeout longer than 6 minutes in your application? If the response is not received within this time, the library should generate a response with the status SMPPCLIENT_RCVTIMEOUT.

Hi aordonez,

Is library logging is enabled in your application? Could you send me at least ERROR and WARN log records?

CUAP ( China Mobile USSD Application Protocol ) is HTTP-based protocol.
Inetlab.SMPP doesn't support this.

Search found 987 matches

Re: Obtain the client IP over the proxy

Re: SMPPServer SendSpeed limit below than the remote and receiving ESME_RMSGQFUL

Re: Coding issue using SMPP Server sending DLR do client.

Re: System.ArgumentOutOfRangeException : Too long (Parameter 'S')

Re: Dynamic encode and convertion to UTF-8

Re: UserData Length Error sending DeliveryReceipt UCS2

Re: Matching Message Id form SubmitSm (hex) with delivery notification (decimal)

Re: Why multiple submit_sm-resp in one packet

Re: Why multiple submit_sm-resp in one packet

Re: Obtain the client IP over the proxy

Re: SubmitAsync never ends

Re: SubmitAsync never ends

Re: SubmitAsync never ends

Re: SubmitAsync never ends

Re: Adding Headers to smpp client before bind