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1answer
45 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 ...
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42 views

Virtual serial port problem

Background: I've to test external GSM module, connected to PC with serial port. Since I'll have to either send messages both to do more, I need to create two virtual serial port (script provided by ...
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1answer
60 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 ...
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1answer
284 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 ...
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1answer
427 views

Difficulties to establish a ppp connection to a GSM provider

I want to establish a ppp link to a GSM provider with my cell phone modem. The modem gets recognized and I can send AT commands just fine, but I can not get the connection established. My chat script ...
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817 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 ...
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1answer
460 views

Mobile Broadband disconnects as soon as connected - Crunchbang

For months now my mobile broadband (GSM) stick has worked with Crunchbang. Yesterday it stopped. When I plug it in, it appears in the network manager and I can connect to it, but as soon as it is ...
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1answer
111 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 ...
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291 views

Use UMTS Stick as a “dial in” modem - no dataplan required

I would like to create an on demand very low bandwidth data connection between two computers. For this I am planing to have a proxy and a client which both have a umts modem (e.g. huawei e169). The ...
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1answer
350 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> ...