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These notes are based on ethaniel's excellent guide. Please read that guide first and then consult these notes on some changes/tweeks I needed to do to get this running on the newest raspberyr pi OS (January 2023) with a Huawei E8372h-320 (2020 model).

Setup SMS forwarding with gammu on debian bullseye on a rasp pi B+ with the HUAWEI E8372h-320 (2020 model)

First and foremost we need to get the huawei into the correct mode. Unfortunately, usb modeswitch did not do this out-of-the-box for me.

Ensuring that the huawei stick does not switch into an incompatible mode automatically

Blacklist cdc_ether by creating a file /etc/modprobe.d/blacklist-huawei-cdc-usb-net.conf with the following contents:

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HOWTO: Receive SMS via 4G/LTE Huawei stick on Raspberry Pi 4 and forward them via Telegram

I live abroad and have only 1 sim card slot in my phone. It holds the SIM card of the country that I am in right now. But I also have another SIM card from my home country which receives my banking SMS codes. I can't afford to lose the "home" SIM card, so I decided to keep it in my house and forward the SMS messages to my main phone and computer via Telegram (just like Whatsapp, but so much better).

I also made a choice to use a 4G/LTE stick instead of 3G, because the 3G signal in my area is getting worse in worse due to operators upgrading their equipment.

Prerequisites

1. Raspberry Pi 4
2. Huawei E8372 (but can be any similar)

Step 1 - Get the Huawei card to work properly with Raspberry

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This tutorial good for Linux or Unix system at the end need to run bash script for connect
(Also it's have some technic for use in windows - Explained at client install section.)

VPS => virtual private server as wiregurd vpn server

Requirements

• Assuming the firewall is off (Not Secure - it's just for test so in production: config firewall)
• VPS have docker and docker-compose (for install instrucrion : docker site full explained)
• In VPS enable net.ipv4.ip_forward=1 at /etc/sysctl.conf (or /etc/sysctl.d/99-sysctl.conf) and reboot your system
• Have access to root user in VPS

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if (!(Get-InstalledModule -Name Proxx.SNMP)) {
try {Install-Module -Name Proxx.SNMP}
catch {Write-Host "`nYou need `"Proxx.SNMP`" module. Restart with administrator rights for installation or do it manually. (Install-Module -Name Proxx.SNMP)" -BackgroundColor DarkRed; break}}

$target=Read-Host -Prompt "Enter printer ip or hostname"
$connect=Test-Connection -ComputerName $target -Count 1 -ErrorAction SilentlyContinue
$ip=$connect.IPV4Address.IPAddressToString
$items=@{Model="1.3.6.1.2.1.25.3.2.1.3.1";#"1.3.6.1.2.1.43.5.1.1.16.1";
         SN="1.3.6.1.2.1.43.5.1.1.17.1"
         Name="1.3.6.1.2.1.1.5.0";

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function Get-XmlFileTreeAppend
{
    param(
        [Parameter(ParameterSetName='Path', Mandatory=$true, Position=0, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)]
        [string[]]
        ${Path},
    
        [Parameter(ParameterSetName='LiteralPath', Mandatory=$true, ValueFromPipelineByPropertyName=$true)]
        [Alias('PSPath')]
        [string[]]

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#define scan account
$domain = "DOMAIN"
$name = "NAME"
$scandef = "DOMAIN\NAME"
#get username
$getusername = (Get-WmiObject -Class Win32_ComputerSystem).Username
function scanacl() {
    #set full access for scan
    $access=New-Object System.Security.AccessControl.FileSystemAccessRule ("$scandef","FullControl","ContainerInherit,ObjectInherit","None","Allow")
    $ACL = Get-Acl -Path C:\Scan

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[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing") 
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
#[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.SystemParameters")

$bounds = [System.Windows.Forms.Screen]::PrimaryScreen
$w = $bounds.bounds.width#[System.Windows.SystemParameters]::VirtualScreenWidth
$h = $bounds.bounds.height#[System.Windows.SystemParameters]::VirtualScreenHeight

$img = New-Object System.Drawing.Bitmap($w, $h, [System.Drawing.Imaging.PixelFormat]::Format32bppArgb)

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$q=Read-Host -Prompt "connect\disconnect"
switch ($q) {
    {$q -eq "connect"} {$fqdn=Read-Host -Prompt "Enter FQDN"
                        $UserCredential = Get-Credential
                        $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri http://"$fqdn"/PowerShell/ -Authentication Kerberos -Credential $UserCredential
                        Import-PSSession $Session -DisableNameChecking}
    {$q -eq "disconnect"} {Remove-PSSession $Session}
}
    

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New-PSDrive -PSProvider Registry -Root HKEY_CLASSES_ROOT -Name HKCR -ErrorAction SilentlyContinue
$list=@(
'.7z',
'.zip',
'.rar',
'.001',
'.cab',
'.iso',
'.xz',
'.txz',

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##### edit #############
$computer = "localhost"
$printerName = "HP Color LaserJet CP2020 Series PCL 6"
$portName = "\\HOSTNAME\HP Color LaserJet CP2020 Series PCL6"
$driverPath = "\\HOSTNAME\Drivers\hp2025"
$inf_x86 = "hppcp610.inf"
$inf_x64 = "hppdp610.inf"
#########################
#platform
switch ($ver = (Get-WmiObject -Class win32_operatingsystem).OSArchitecture) {