Hello, Dear Friend Bader,
Thanks to you and to God!
Its working now, but in the topic of the letter you have to put the number only! without any words.
Look at picture, please, messages with topic in red rectange are not received
So, the script in the router can not substract number from the topic from any position, first or middle or end.
Please ask developers to make some changes in script, i hope it's possible, to study script substract number any length, with starts from 00.
I use last version of firmware RUTX_R_00.07.02.7
Thank you!