SMPP Server receivied Strange characters

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jesripurba
Posts: 5
Joined: Mon Jul 19, 2021 3:10 am

SMPP Server receivied Strange characters

Post by jesripurba » Thu Jun 09, 2022 5:51 am

Dear All,
When SMPP Server receives messages from clients, some messages (about 5%) are received with strange letters like the following:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@ (all converted to '@' character)

Whereas according to the client, they sent readable text containing the OTP of one of the social media.

Where is the problem?
I use SMPP Server Inetlab 2.9.14

Regards,
Jesri
alt
Site Admin
Posts: 985
Joined: Tue Apr 25, 2006 9:45 am

Re: SMPP Server receivied Strange characters

Post by alt » Mon Jun 13, 2022 4:01 pm

Dear Jesri,

It can be the wrong DATA_CODING to .NET encoding mapping.
https://docs.inetlab.com/smpp/v2.9/arti ... oding.html

I need to check the SUBMIT_SM PDU you received from the client. Please send the Wireshark file to the support@ .
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