Send sms with web panel

Hello. SMS messages are sent to 11 digit numbers normally. SMS does not go to 4-digit numbers of the type, for example, 5151. there is an exclamation mark in the UI. If I move the SIM card to the phone, everything is sent. This only applies to sending SMS. USSD requests are working fine.

sorry
May I ask, is your 4-digit number USSD-code?

I am sending USSD codes of the form "* 666 * 12#" they work.
SMS messages are not sent to the number 5151.
09.26.09

More precisely, the AT commands work. T+CUSD=1,* 666 * 12 # (spaces to keep formatting here)
But the commands converted to the PDU do not work with short numbers the same way.
AT+CMGS=15 0891FFFF151500080054004500530054
+CMS ERROR: 304

opkg update
opkg install minicom
minicom -D /dev/ttyUSB2
CTRL+A  -- press E
AT+CMGF=1  --press enter
AT+CMGS=“+phonenumber”  --press enter
> write  message
--press ctrl + z

--return 
+CMGS:8
OK
--exit
Ctrl + A  --press Q

Can you try the AT command?

I get an error
AT+CMGF=1
ERROR I got an error here once. then it's OK. But the following command gives an error.
AT+CMGS=5151
+CMS ERROR: 304

I'll try it remotely?

Yes, I have granted access

Please send me a private message
Tell me your mac address and password
thank you

I can't send you a private message.

Hello how to send a sms for example to 511 number? Its not possible in sms panel. I tried AT command and I had error. I’m using 4.0 version

Did you try to send an sms to a normal number, just to make sure, that it is generally working?

Yes it’s fine

Please prepare your router for technical support, see Technical support via GoodCloud - GL.iNet Router Docs 4

@ywp Could you please PM @danna1717 to pinpoint this problem?

Is this necessary? I don’t think I want to do it due to privacy

511 is a USSD short code?

No its a number where I need to send sms

Have you tried this method?
What error is returned?

Hi, apologies I have been out of town yesterday and today. Will give this a try tomorrow when back home and let you know the results.

It’s working but it’s not convenient. I hope this will be added in update. But I have other question. I’m sharing my internet with lan, why the router is so hot when I’m not browsing anything, and battery goes fast

What do you mean by "hot" and "fast"? How does your LAN looks like?