Questions tagged [gsm]

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2
votes
1answer
95 views

GSM modem - get signal strength

I have setup a gsm connection through network manager (USB dongle, raspberry pi). It connects and works fine by managing it with nmcli. What I would like to see is the signal strength so that I can ...
2
votes
1answer
132 views

Identify GSM Carrier of SIM Card Inserted into a Linux Host

The SIM card used in each Linux gateway for the GSM connection will vary from location to location due to signal coverage by different GSM carrier networks. But in order to automate setting the APN ...
2
votes
0answers
194 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 ...
4
votes
1answer
3k 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, ...
2
votes
1answer
3k views

GSM device unavailable in NetworkManager

I've been trying for the last few days to set up a GSM connection on my new ubuntu box. However, I can't seem to get Network Manager to manage it correctly. The box is a compulab fitlet2 and the cell ...
0
votes
1answer
1k views

Change APN of GSM connection

I'm trying to change the APN of my GSM connection but don't know how to do it, googling didn't really help. This is my current connection: NAME UUID ...
1
vote
1answer
7k views

Modem Manager set bearer and connect automatically

I'm trying to set up a Huawei E3276 LTE stick with German Telekom and Modem Manager on Raspberry Pi (latest Raspbian), and basically it works but I'm failing to create a configuration that is ...
0
votes
1answer
437 views

Sierra Wireless GSM modem EM7455 + Android Integration Error

EM7455 connect on Single Board Computer(NanoPC-T2) through USB. I have attached AndroidRIL_5.1.11 binary files in my android and kernel source after build it and run on my android device.Below error ...
2
votes
1answer
767 views

Unable to connect to USB 3G Mobile Broadband

I am using Arch Linux, Trying to connect to internet using my D-Link mobilebroadband. ( using NetworkManager and ModemManager ) I configured it using GUI ( setting APN/Network -Vodafone etc.. ) But ...
2
votes
1answer
621 views

“Level 2 halted” error message using ldattach with mux type GSM0710

I have a 3G modem on my BeagleBone Linux system that supports GSM0710 multiplexing (i.e. can create >= 2 virtual serial ports that connect to the physical modem port, which can then be used to run ppp ...
1
vote
0answers
790 views

Internet connection over GSM module + PPP

I am trying to get internet connection in my raspberry pi 3 (Raspbian) with a GSM (SIM900a) module, connecting it to RXD/TXD Serial ports (/dev/ttyS0), I already got an ip address and DNSs, but I can'...
2
votes
0answers
229 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 ...
1
vote
0answers
106 views

my gsm modem echo my command on mini2440

I have mini2440 and GSM modem that they connected to each other with USB serial port (ttyUSB0). this is my code in c++ to send AT: #include <QCoreApplication> #include <stdio.h> /* ...
2
votes
0answers
125 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.
13
votes
2answers
33k views

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 ...
0
votes
1answer
436 views

Send Fax with GSM modem on hylafax?

I have a couple of questions related to using a GSM modem for faxing. I wanted to know if it's possible to send faxes with the hylafax-server from a GSM modem? If possible can you please explain how ...
10
votes
3answers
23k views

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 ...
3
votes
2answers
11k views

getting “bad init string” when dialing with wvdial

I'm trying to dial-up with my Huawei modem EM680 using wvdial. My modem is found properly on /dev/ttyUSB1 but when I execute wvdial I get this: # wvdial --> WvDial: Internet dialer version 1.61 --&...
2
votes
1answer
178 views

UART0 Access in AM1808 using Embedded Linux

I am trying to interface GSM module with my AM1808 processor. I am using gcc compiler as well as UBUNTU 10.04 Lucid. I have configured the TXD and RXD pins of UART0 but i can not access the RTS and ...
3
votes
1answer
936 views

Critical messages from gsm and gtk

After upgrading to Fedora 18, I am seeing the following critical messages on /var/log/messages whenever I log on to the computer: CRITICAL: gsm_manager_set_phase: assertion \`GSM_IS_MANAGER<br> ...