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Questions tagged [modem]

This tag is for questions about a network interface for analog lines such as “56k” or DSL on phone lines, as well as for mobile network data service clients.

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Difference between PPP, QMI and AT commands

During the past 6 days, I had the chance to interact with an LTE modem (https://sixfab.com/product/quectel-ec25-mini-pcle-4glte-module/), I managed to set up 4G Internet access on a Raspberry Pi using ...
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1answer
38 views

Why does plugging in a cellular modem create 8 different device files?

I am using a BeagleBone board running Debian. When I plug in a USB cellular modem, this creates the following files in the /dev folder: ttyACM0, ttyACM1, ttyACM2, ttyACM3, ttyModem0, ttyModem1, ...
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11 views

Different network interface name at boot

I have a Huawei modem for which I set the following udev rule to rename the network interface at boot: ACTION="add", SUBSYSTEMS=="usb", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="15c1", ATTRS{...
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23 views

qmicli & Mobile Virtual Network Operators

I am currently working on a project involving some Sierra Wireless LTE modems which expose a QMI interface. I am using qmicli 1.16.2 on Ubuntu Server 16.04 LTS. In order to get the modem to connect ...
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0answers
43 views

Determine which device was assigned to a USB modem?

I'm testing a Tinker board, which is an ARM gadget running Debian 9.8. I inserted a USB modem. It appears the modem was detected but I can't find a device for it: [ 8178.815663] usb 1-1.1.5: new full-...
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26 views

Huawei me906e broadband model connects fine, but the network doesn't work

I have a Huawei me906e broadband modem (in a M.2 to USB adapter). In this modem I inserted a SIM card which I previously tested in my phone and it works fine. After several obstacles I managed to have ...
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0answers
68 views

Network-/ModemManager doesn't unlock SIM automatically

I use nmcli to set up a gsm connection in Ubuntu 16.04. Configuring this connection I set the gsm.pin property and auto-reconnect is enabled. When nmcli tries to connect it says that the modem is in ...
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40 views

Unable to launch USB modem connection on boot

In a Raspberry Pi3. I have valid PPP configuration in my Raspbian Stretch that I'm able to launch manually from terminal. But it doesn't work if try to do it on boot. This is my setup: File /etc/ppp/...
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20 views

How to write dev rules if all parameters seem to be the same?

I have 3 USB SMS Modems, each having 2 (or 4) usb hubs inside The problem is that sometimes modem 1 mounts to /dev/ttyUSB0 and /dev/ttyUSB1 and other times it mounts to /dev/ttyUSB12 and /dev/ttyUSB13....
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92 views

Receive SMS via internal SIM using Modem Manager GUI

I have a working SIM card in my machine and installed the Modem Manager GUI software to receive SMS. I have tested the SIM card in a phone, it works. Using it to access WWAN from the computer also ...
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1answer
76 views

SSH over incoming call from faxmodem possible?

I have a flaky broadband internet connection, and, seperated from that, a classic analog landline. Furthermore, I have a raspberry pi and a usb 56k-faxmodem. When I am not at home and can't reach my ...
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0answers
89 views

USSD in ZTE MF833T

The modem is directly running as USB Etherne and is not detected by Modem Manager GUI. I have to manage settings in address http://192.168.0.1/. Is it possible to send USSD request in ZTE MF833T ...
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3answers
152 views

Is there a way for linux to display caller id?

After switching to linux, one thing i miss is something called phonetray, which displayed caller ID to my screen. I wondered if there is a way for Linux to do something similar. I found a blog ...
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0answers
197 views

How to script AT command to modem?

Every time my USB modem (/dev/dlinkModem) gets unplugged it defaults to "radio disabled mode" (AT+CFUN:4). I can easily enough call AT+CFUN:1 through the minicom application console to enable radio ...
2
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1answer
78 views

Convert sound encoded in RTTY 45.45 baud using minimodem

I've downloaded a file encoded in RTTY 45.45 baud (mp3 output of linked video). I'm not sure if the final output should be audio or text. I've also installed minimodem which I'm reading can convert ...
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1answer
25 views

Redirecting stdout makes modem unable to connect

I'm running Yocto with busybox on an embedded system with a Telit modem. If I launch the main program, script A, with ./script_A & there's no problem at all and the modem connects on the first ...
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1answer
39 views

How Do I Find The Mobile Provider From 4G Dongle?

I have two or more 4G dongles connected via USB. I have set up multiple configuration files (one for each provider), but short of a visual inspection (which for this project won't be possible in the ...
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2answers
80 views

SSH connection problem (timeout) from outside to ppp0 interface (4G modem) on Raspberry Pi [closed]

I am having difficulty establishing SSH connection from outside to Raspberry Pi that has USB 4G modem as interface. I get timeout when trying to connect with ssh: ssh -l pi ccc.ccc.ccc.ccc -p 22 ...
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0answers
41 views

huawei e800 expresscard modem not being recognized by manjaro

I'm trying to get a Huawei e800 expresscard / PCMCIA card modem to work in manjaro linux, but modemmanager is not detecting it at all, let alone let me configure a connection with it. The status light ...
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1answer
134 views

Unable to access modem IP through Linksys EA2700 router

Router IP: 192.168.1.1 (Linksys EA2700) Modem IP: 192.168.100.1 (Technicolor TC4350) Everything here refers to a wired configuration. Entering the modem IP in a browser address bar returns an ...
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37 views

Why “receive / transmit bytes” is so big difference between optical modem and host when download data on host?

ens33 is my host network card,it show a normal number as my network use status,but I don't know why my modem show a very small data traffic in all interfaces of modem when download on host. My host: ...
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0answers
36 views

Set Sierra modem to packet switching via AT Command using ubuntu live CD

Lifebook E5440 has WWAN Modem Sierra EM8805 Multi SIM - Phone is occupied when Notebook is online i know this problem from lenovo notebooks Win10 doesnt let me set the config cause there is no com ...
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2answers
200 views

Debian Stretch / Gnome Network Manager: select network interface for sftp

So I have a computer running Debian Stretch; it needs to network to a Raspberry Pi on eth0 using a static IP (e.g. 192.168.0.x), while being able to grab files via sftp using a mobile broadband modem (...
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0answers
64 views

Open WRT mini router: mobile modem installation

The GL-AR300M mini router runs a Linux based Open WRT system, making it highly configurable. Recently i have been trying to use the 3G modem Option Globetrotter GI0505 i have with it, but without ...
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0answers
144 views

WvDial serial communication not working with uart /dev/ttySAC4, but works with `screen`

I have embedded system based on Samsung Artik 710 board connected to Fibocom G510 cellular modem module via UART (two lines - RX and TX). When I try to communicate with modem using screen - modem ...
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0answers
120 views

Our Telit LE910C1-NS based board gets nameserver information, but won't ping

We've been using the Telit DE910 to connect to establish a ppp connection through Sprint. We need to change it to the LE910 family. Last week I was able to get the Telit LE910-SV1 (Verizon version)...
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0answers
330 views

ppp internet not only after restart

I have configured my network to get internet from HUAWEI E3131 usb modem at start. So I have prepared special wvdial.conf and interfaces files: wvdial.conf: root@debian:/home/s# cat /etc/wvdial.conf ...
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0answers
196 views

LEDE cannot create modem interface

System: Onion Omega2s LEDE 17.01 I have connected a Huawei ME90E modem to the USB port of the Omega2s. I have successfully connected the ME906E modem to the Raspberry Pi running Debian, but have ...
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0answers
111 views

How do I connect to the internet with 3g usb modem (mobile broadband connection) in OpenBSD?

In order to install the GUI in OpenBSD! I know how to connect to wifi but now I have only 3g-usb-modem Huawei E171 and I don`t know how to connect to the internet via 3g-usb-modem in OpenBSD ! How can ...
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1answer
286 views

How do I make ppp reliable over lossy radio modems using pppd and tcp kernel settings on debian?

I am having a lot of trouble establishing a reliable ppp / tcpip link between two debian systems over radio modems. My hardware topology is a little complex. The system uses: Raspberry Pi 3B at ...
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1answer
1k views

How to get audio in and out of Huawei GSM modems when doing a voice call?

I have a Huawei E160E and a Huawei K3765 "GSM"-modem. The question is: How to send and receive audio data placing or receiving phone/ voice calls with those modems? Both seem to support voice calls, ...
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1answer
66 views

Data and control channels for a modem in Linux?

I have a USB modem detected as a device device file (/dev/ttyACM0). Redirecting AT commands to the device file seems to work as the modem responds. Am going with the following assumption, the upper ...
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0answers
442 views

udev high cpu problem

i just reinstalled KUbuntu 16.04.4 64bits on my toshiba. Here https://pastebin.com/qKVpp0re is the result of the udevadm monitor command. KERNEL[8960.854968] change /devices/pci0000:00/0000:00:...
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2answers
2k views

cellular modem: pppd modem hangup

I am trying to establish a cellular connection to Verizon through my Multitech Multiconnect Dragonfly (MTQ-LVW3-B02). I am able to connect to Verizons network and get an IP address. The problem is ...
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0answers
118 views

mgetty dial-up console: 'who' not displaying modem connection information

I have a dialup console on a Linux box (Raspbian 9.1 on a Raspberry Pi 2 model B Rev 1.1, if it matters). mgetty version is 1.1.36-3. I can dial in and everything functions fine. In the past, on my ...
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1answer
750 views

How to setup 3G modem in OpenWRT?

OpenWrt Chaos Calmer 15.05.1. USB dongle ZTE MF190. I executed some installation commands from this tutorial. Now dmesg | grep usb shows me the following: [ 4.150000] usbcore: registered new ...
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0answers
44 views

Which tools are available on Linux/Unix which can be used to reprogram a wireless modem? [closed]

I have Wifi device which is locked to support just one network provider. While trying to get some info about the process to unlock it for other providers, I got a binary file which is supposed to be ...
2
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0answers
606 views

No IP for USB 3G modem Huawei E3131 using modemmanager

I am trying to use a Huawei E3131 USB 3G modem on a Raspberry Pi system using raspbian (Debian 8) and modemmanager. I have two of those modems, and while they look the same, to the system they seem ...
2
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1answer
524 views

How to establish an IP conncetion with ModemManager, but without NetworkManager?

To test connectivity without NetworkManager, we would like to establish an IP connection using only ModemManager and basic Linux tools except NetworkManager, e.g. pppd. Our modem is a Telit HE-910 (3G)...
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1answer
382 views

How to get Kc key and TMSI number with AT command in Linux

I've completely configured the port with opened modem on ttyACM0 as my mobile device (HTC M8). However, it didn't allow me to enter anything. I've tried with hotkey Ctrl-A Z, but there was no news. I ...
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0answers
120 views

How can I set expected data format using qmicli in Debian jessie?

OS: Debian GNU/Linux 8 (jessie) Hardware: CHIP Pro libqmi-utils 1.10.2-2 installed by apt-get from jessie/main does not have the --set-expected-data-format option. I am using the EM7430 modem ...
2
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1answer
559 views

qmicli Cannot set expected data format [closed]

OS: Raspbian GNU/Linux 9 (stretch) Kernel: Linux 4.9.41-v7+ I am using a EM7430 embedded modem. This modem supports raw-ip only. Run ip addr shows 3: wwan0: <BROADCAST,MULTICAST,UP,LOWER_UP&...
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3answers
845 views

DHCP client fails to get IP address (Modem EM7430)

O/S: Raspberry Pi running Raspbian GNU/Linux 8 (jessie) Kernel: Linux 4.9.24-v7+ Ran ip addr and confirmed wwan0 and wwan1 interfaces are created. wwan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu ...
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4answers
422 views

cannot access USB device from a program started with systemd

I have the following script to send SMS messages with a GSM usb modem: #!/bin/bash env > /home/hans/systemenv.txt #touch /home/homeassistant/pipo2.txt read count < /home/homeassistant/....
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0answers
53 views

Creating a gdbus object (sim card)

I have a wwan modem in which I can insert a sim card, via gdbus introspect I am a ble to retrieve every information I would need to simulate that sim card (Identifier, imsi, operator identifier and ...
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0answers
124 views

The problem with installing drivers for the TP-Link modem TL-WN722N Kali1 and Kali2 [duplicate]

I'm new to Kali. Kali1 installed on a virtual machine, but Kali2 installed on HDD. Errors are the same. modem TL-WN722N v2 The driver was downloading from here GitHub /lwfinger/rtl8188eu.git. As per ...
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0answers
37 views

CDC device filename locked after modem power down

I have Linux machine (ARM based, built using Yocto, kernel 4.10) with modem connected using USB interface. Modem can be powered up or down using GPIO lines. After powering modem, CDC device file is ...
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0answers
5k views

Huawei E3372h usb_modeswitch

I'd like to switch my Huawei E3372h-153 from HiLink/router-mode to Stick/modem-mode. I use a Raspberry Pi (Raspbian) and the usb_modeswitch tool. My command to switch the device: usb_modeswitch -V ...
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0answers
781 views

No DHCPOFFERS received

Modem: Huawei ME906s-158, Computer: Raspberry Pi I am getting this error message No DHCPOFFERS received Am I missing a step? Running usb-devices shows: T: Bus=01 Lev=02 Prnt=02 Port=04 Cnt=04 ...
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1answer
475 views

3g Modem not auto connecting with console mode but auto connects while in desktop!

I have strange behaviour. I have USB 3G Modem and it doesnt auto-connect, yet that's what I want. I am just in headless mode; I'm trying "nmcli" and it doesn't work at all. But when I start desktop ...