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.
14
questions
17
votes
2
answers
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Difference between ppp0 vs wwan0
I am Running Raspian on a RaspberryPi.
When I plug in a GSM modem I see two interfaces - wwan0 & ppp0.
wwan0 exists even when the GSM modem is plugged but not connected
ppp0 exists only when ...
- 333
4
votes
2
answers
5k
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Udev rule file for modem not working
I am using a modem for sending SMS, which has 16 (ttyUSB0 to ttyUSB15) ports. I want to make udev rule to give device name AMPM and ports should be named Port1, Port2,...Port16.
Check out this output ...
- 1,855
3
votes
1
answer
11k
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Fixed udev rules for USB modems
On gentoo I have 10 USB modems and every of them has 3 interfaces /dev/ttyUSB0, 1, 2 and so on for each modem. Sometimes their positions can change, so it is very difficult to work with them.
I'm ...
- 183
2
votes
2
answers
8k
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How to send AT commands to modem once the connection is established?
I have a zte 3g modem. I use carrier provided dialer for connection establishment. Once the ppp connection is active, i would like to send some AT commands(for ex. Query signal strength, AT+CSQ). But ...
- 143
14
votes
3
answers
54k
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configure gsm connection using nmcli
I have a system without X display and I want to use nmcli to configure my cell modem to connect to a certain apn. I can get it going with this modem just fine on Ubuntu (with X) and I would like to ...
- 2,079
8
votes
1
answer
5k
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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, ...
- 1,841
5
votes
2
answers
3k
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Does Linux have support for network interfaces over an AT-Command serial modem?
I've got a Telit GM862-GPS module, which is a GPRS modem with a serial interface and uses the standard Hayes AT command set (with some extensions). What I'd like to do is to be able to connect this up ...
- 643
4
votes
2
answers
8k
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How to send a file using xmodem protocol from the command line
I have a scope attached to RX and TX lines of the serial port. If I do:
cat /dev/ttyS0
I get a steady stream of 'C' characters so the remote side is up and sending.
If I do:
cat {filename} > /...
- 41
3
votes
2
answers
2k
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How to get Vodafone mobile connect (or equivalent) working reliably on Debian Squeeze
I got a Vodafone K3760 at some point in Debian/Lenny's lifetime, for use with a Lenovo S10e. I installed (from the Vodafone BetaVine site) usb-modeswitch 0.97 and vodafone-mobile-connect (VMC) 2.10.01-...
- 715
2
votes
0
answers
1k
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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 ...
- 305
2
votes
1
answer
2k
views
Reserve ports for modem
I have a modem with 16 ports used for sending SMS.
When it's connected to my Linux machine, I get 16 ports from ttyUSB0 to ttyUSB15. Currently if I remove this modem and attach another, I get 16 ...
- 1,855
0
votes
1
answer
100
views
Setting PIN code for ZTE USB 4G Modem recognized as CDC Ethernet device in Linux
Currently facing an issue with setting the PIN code for a ZTE USB 4G modem on a Raspberry Pi 4 (running Rasbian Bookworm). The modem is recognized as a CDC Ethernet device (cdc_ether kernel module), ...
- 103
0
votes
5
answers
7k
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USB LTE modem "Brovi E3372-325" not working
I have problem new USB LTE modem Brovi E3372-325
I can't get it to work on linux. When connected to a USB port, the modem identifies itself as:
# dmesg
...
[ 6731.401923] usb 1-3.4.4: new high-speed ...
- 111
0
votes
1
answer
2k
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Under Ubuntu 16/18, ttyACM sends unwanted AT commands on connection - how to stop this?
I have some external hardware running embedded Linux (a relatively old version of the kernel), loosely based off the old DaVinci DA850 development board.
It communicates with the host PC over a USB ...
- 178