hello , i have a probléme with my device (Teltonika tmt250) connection and receiving messages , please if u see somthing wrong tell me !! 
AkramReqqi I see on your first screenshot that TLS Encryption is enabled. You have either disable it out configure properly on both sides (channel and device)
AkramReqqi your correctly configured GPRS settings and remote server configuration. You only need to configure device to store and send messages although it looks like also configured. Maybe you just need to allow the device to clock satellites to sync its internal clock and that is? Just put it under clear sky and wait a bit.
shal Hello shal , thank you for ur reponse, "Maybe you just need to allow the device to clock satellites to sync its internal clock and that is?" (How to do that plz?)
kial Hello kial thank you for ur reponse , i disable it , but no data sended to flespi , also i active messages ttl in flespi i make the number 1 for receving messages , but no messages i see .
AkramReqqi Now it has to be some configuration issue on the device side. On your screenshot in the first post, there is a connect+disconnect logs in your channel, from an IP address located in Morocco (according to the WHOIS search).
Please check again that your device sees GPS satellites and is configured to send position data.
Hello Kial , im now under the sky directly , but without result
I think i have change the sim card with other 🙁 i will try this way , i hope this way that work with me .
Hello Kial , finally the way i told you its work with me . Thanks a lot