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.
89
questions with no upvoted or accepted answers
4
votes
0
answers
395
views
Modem's GPS data is piped to wrong device
I have a SIM7100E modem running on 4.8.0-26-generic which specifies the following devices:
/dev/ttyUSB1 : NMEA port for GPS NMEA data output
/dev/ttyUSB2 : AT port for AT commands
Connecting to ...
4
votes
1
answer
1k
views
Is there a way to tell wvdial to wait for the answer of a command?
Some AT commands in wvdial return their answers with a delay. This period of time depends on the command. For instance, when you want to scan for available networks, you can use the AT+COPS=? command. ...
4
votes
0
answers
2k
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Making voice calls using Huawei E1550
3G dongle Huawei E1550 is able to make voice calls using Huawei app in Windows. With search I found the same app for Linux (called Mobile Partner), seems it's working and makes calls, but without ...
3
votes
0
answers
896
views
Modem not reconnectiong after 4G disconnect
In one of our systems we recently had the problem that after a disconnect from the 4G network the modem did not reestablish the connection, even thought the 4G connection was back up again. A manual ...
3
votes
0
answers
2k
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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 ...
3
votes
1
answer
2k
views
udev rules assign same port name for a modem with 4 ttyUSB ports
I have a dlink DW-157 3g dongle. I am trying to assign the same port to the dongle everytime it boots up by modifying the udev rules file. Since the dongle on boot boots up as a storage media, I have ...
3
votes
0
answers
329
views
Multiple network interfaces issue
I've two 3G USB modems (or one USB modem and any other network interface - eth or wlan).
I connect both interfaces by creating IP rules and adding routes for each one as follows:
sb="ip/subnet&...
3
votes
0
answers
151
views
Switching from GSM to CDMA
NetworkManager has crashed and now it's showing CDMA mobile broadband as a GSM device.
How I can switch to CDMA mode? I'm using Ubuntu.
3
votes
0
answers
265
views
VPN piggybacked on two mobile phone Wi-Fi hotspots
I cannot get 1Gbps at home, so instead of wasting money on slow landline Internet with extra traffic limits and ridiculous overage fees, only to wait in the console until my stuff downloads/uploads, I'...
3
votes
1
answer
3k
views
Qualcomm based modem Venus converted to ttyUSB0 but not responding forever on fedora 18
I've one usb modem qualcomm based, here is my configuration what I've done in the past.
wvdial
# wvdial phone
--> WvDial: Internet dialer version 1.61
--> Cannot get information for serial ...
3
votes
0
answers
891
views
How to turn off "Please enter PIN" (Ubuntu, Desktop, 3G Modem)
Upon having booted to my Ubuntu on my notebook which has an internal dial-up device for 3G network, which I don't use anymore, Ubuntu asks for my PIN for the SIM card.
How can I disable this PIN ...
3
votes
1
answer
1k
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Can I get an 8-bit clean connection with 'socat'?
This question is mostly about "socat", but here's some background to go with it:
I am trying -- for reasons having mostly to do with nostalgia -- to write a virtual modem driver for use with ...
2
votes
0
answers
649
views
Can’t send sms with ModemManager “GDBus…: Unknown error”
I have an internal mobile modem well detected and currently working for 4G internet. BTW, ModemManager also detect it:
% mmcli -L
/org/freedesktop/ModemManager1/Modem/0 [Hewlett-Packard] MU736
So,...
2
votes
0
answers
210
views
Trying to connect to a PCI Modem
I hope someone can offer some advice, I'm very new to linux/Debian so I'm sure it is probably me doing something stupid.
I have just installed Debian on a pc that was running windows xp. But am stuck ...
2
votes
1
answer
594
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-...
2
votes
0
answers
919
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
votes
0
answers
1k
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
votes
0
answers
53
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 ...
2
votes
0
answers
10k
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 ...
2
votes
1
answer
781
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 ...
2
votes
0
answers
1k
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D-Link DWM-157 3G USB Modem doesn't connect
I want to connect to the internet using D-Link DWM-157 3G USB Modem, with Raspberry Pi 3 and Raspbian Jessie as OS (latest version).
I've tried billions of methods without success!!
This is so far ...
2
votes
0
answers
1k
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Current linux compatibilty with sim slot/4G LTE notebooks
I'm thinking about a new notebook with sim card slot and I've found many products. However, is linux(not any specific distro) that far, that it works right out of the box? From my experience, I was ...
2
votes
0
answers
356
views
Use mgetty to answer a call and press a key
I bought a GSM shield for the Raspberry Pi (version 1, B) and a SIM card to join the proper cellular network. I use mgetty to react to my call, like this:
mgetty conf
which works just fine and the ...
2
votes
0
answers
2k
views
How to start Mobile Broadband connection in openSUSE?
I have openSUSE Tumbleweed installed on my x64 laptop, with the latest updates (at least almost...) I managed to create a Mobile Broadband Network Connection for my Alcatel One Touch modem, with a ...
2
votes
0
answers
985
views
Why the connection speed is limited to 20-30 mbit/s in the case of a PPP daemon?
I'm configuring my LTE modem (Huawei E3372s-153, NON-HiLink), and I recently found out that this modem can work in two different modes: RAS and NDIS (NCM). The second one works just as normal NIC and ...
2
votes
0
answers
443
views
Verizon LG VL600 USB 4G Modem
I am trying to connect an LG VL600 USB 4G Modem from Verizon on a Debian based machine (tried on Linux Mint and Raspberry Pi). I got it working on Windows 7 Virtualbox VM, so I know the device and ...
2
votes
0
answers
4k
views
"Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:14.0/usb2': not supported by any plugin"
I just bought a new laptop, HP EliteBook 840 G2. I used this computer during my travel in a train. I bought this laptop, because it has a 4G modem integrated. This modem works on Windows, but I can't ...
2
votes
0
answers
3k
views
Could not resolve host: mirrorlist.centos.org
I did a fresh install of CentOS 7 on an Acer Inspire T. It is a terminal-only installation (no GUI). I connected the CentOS 7 box to a cable modem via an ethernet cable, and the cable modem is ...
2
votes
0
answers
115
views
How to enable second SIM slot in ALIX6F2 and how to switch 3G to it from the 1st one?
I am trying to enable the SIM slot under the RF card but with no success whatsoever. I'm using Voyage 0.8 (a stripped off Debian distribution) as an operating system. A bit of searching landed me to ...
2
votes
0
answers
2k
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Sending SMS trough a modem attached to another server using ser2net and socat
I don't know exactly how to troubleshoot the issue I'm having, so I'll ask here.
I have a USB 3G modem attached to a physical machine server4 running ProxMox OS based on Debian Wheezy, and I can send ...
2
votes
0
answers
2k
views
Error while trying to connect to internet using wvdial
I am getting error while connecting to Internet through Wvdial .
This is the output which I am getting :
tusharmakkar08@tusharmakkar08-Satellite-C660 ~ $ sudo wvdial
--> WvDial: Internet dialer ...
2
votes
0
answers
333
views
Does HylaFax server run in OS X?
From their FAQ:
HylaFAX is intended to run on any UNIX system that supports a particular set of features: FIFO special files, BSD-style sockets and the TCP/IP communication protocols, BSD-style ...
2
votes
1
answer
710
views
USSD in ZTE MF833T
The ZTE MF833T modem directly runs as USB Ethernet but is not detected by Modem Manager GUI. I have to manage settings using its IP address http://192.168.0.1/.
Is it possible to send USSD requests ...
1
vote
0
answers
77
views
No access to internet on Pop! OS with new ISP and new Modem
I'm running Pop! OS 20.04 LTS. Recently switched to new ISP (new modem/router). I have no problem connecting to the modem but then I don't have access to the internet. Some things to note:
I only ...
1
vote
0
answers
943
views
Write firmware over /dev/ttyUSB0 to embedded device
I'm using the last example in: this post
I keep getting wctx:file length=0 after the sz command. I'm actually opening the serial connection with minicom Minicom is botching the transfer. So, after I ...
1
vote
1
answer
453
views
ModemManager - Unable to to send SMS with curly braces
I'm stuck on a problem using ModemManager (mmcli 1.14.2) to programmatically send SMS which contains a certain combination of special characters which I have yet to identify.
The SMS I'm trying to ...
1
vote
0
answers
615
views
How to run wvdial for modem?
I have some problem during trying run command "wvdial", because i got error like:
--> WvDial: Internet dialer version 1.61
--> Warning: section [Dialer Defaults] does not exist in ...
1
vote
0
answers
245
views
How to manage audio in and out from and to file of Huawei GSM modems?
I've got a Huawei E173 USB dongle connected to a Raspberry PI.
I'm trying to use the device to make and receive calls.
For my purpose, it is needed (i) to save audio of the call to file and (ii) to ...
1
vote
0
answers
108
views
AT modem command, how to detect frequency sent from a call
I am trying to use AT modem commands to call a phone number, receive a kissoff tone (at 1400 hz frequency), send 12 dtmf ones, and receive a handshake tone (different pure tone frequency)
I know how ...
1
vote
1
answer
223
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, ...
1
vote
0
answers
122
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 ...
1
vote
0
answers
98
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 ...
1
vote
0
answers
618
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 ...
1
vote
0
answers
916
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 ...
1
vote
0
answers
246
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 ...
1
vote
0
answers
584
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:...
1
vote
0
answers
231
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 ...
1
vote
0
answers
133
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 ...
1
vote
0
answers
1k
views
Wvdial.conf dial errors. Raspberry Pi Model B Huawei E1820 3G Modem
Linux is kicking my butt.
I have attempted to use wvdial for the first time to get 3G working on my Raspberry Pi, but things have not gone as expected. First of all, when I do a simple
sudo ...
1
vote
0
answers
2k
views
How to do iptables nat loopback?
I have a linux server behind the ISP's cablemodem-router combo.
With some hacking I was able to make the port forwarding work, and the DHCP exceptions in the udhcpd.
But I wasn't able to do the NAT ...