Stack Overflow
Stack Overflow

Questions tagged [gsm]

GSM is an abbreviation for "Global System for Mobile Communication"

GSM is a second Generation Cellular Standard popularly known as 2G Standard. It is standardized by ETSI(European Telecommunications Standardization Institute).

1485 questions
7
votes
1 answer

eCGI and CGI for LTE and GSM networks

I'm trying to determine the CGI (the Cell Global Identifier) the UE is connected to. From the 3GPP specs, it's defined as follows: 3G: CGI = PLMN-ID + LA code + CID 4G: ECGI = PLMN-ID + ECI I can already get the LAC (location area code) and CID…
MikeW
  • 151
  • 1
  • 2
  • 5
7
votes
1 answer

Voice commands for Huawei GSM/UMTS usb dongles?

I am trying to find out how to use voice functions with a HUAWEI E173 dongle in linux. My dongle is voice enabled (voice works with the windows application). I can check the voice activation in linux using the AT^CVOICE? command. This tells me how…
callegar
  • 223
  • 1
  • 2
  • 7
7
votes
5 answers

decode 7-bit GSM

I found this post on how to encode ascii data to 7-bit GSM character set, how would I decode 7-bit GSM character again (reverse it back to ascii)?
johannes
  • 14,043
  • 5
  • 40
  • 51
7
votes
2 answers

Support [ and ] characters in PDU mode

I am writing application in nodejs for sending and recieving sms in PDU mode.I use wavecom GSM modem(7-bit encoding) to send sms. It also support 8 bit(AT+CSMP=1,167,0,8) encoding scheme. I can send alpha numeric character properly.But I can't send…
Paresh Thummar
  • 933
  • 7
  • 20
6
votes
6 answers

How do I go about writing a program to send and receive sms using python?

I have looked all over the net for a good library to use in sending and receiving sms's using python but all in vain! Are there GSM libraries for python out there?
Gath
  • 569
  • 2
  • 8
  • 7
6
votes
0 answers

SMPP, SMS, GSM, Data Encodings, and Locking Shift Tables

I'm working with a corporation which is attempting to send SMS messages to people in countries all over the world using various languages. The corporation has a custom-written application which communicates using the SMPP protocol with SMSC's of…
jk.
  • 69
  • 1
  • 2
6
votes
2 answers

How to check iPhone network type GSM or CDMA

In my application I need to check network type GSM or CDMA (for Verizon). I found CTCarrier class which contains property mobileNetworkCode, but I don't wanna hardcode value for each providers. Are there other ways to check it? Please help.
Altermann
  • 99
  • 1
  • 7
6
votes
1 answer

AT+CMGL="ALL" command return only OK

Manufacturer: huawei Model: E3533 Revision: 22.318.27.00.00 IMEI: 353934033009021 +GCAP: +CGSM,+DS,+ES AT+CMGS command work well. OK AT+CMGS="99667788" > test sms +CMGS: 45 OK AT+CMGL="ALL" OK AT+CPMS="SM" +CPMS:…
tsogtgerel.ts
  • 955
  • 1
  • 15
  • 32
6
votes
2 answers

what is the purpose of using USSD Commands in our J2ME Application? Is this possible?

I heard there is USSD Commands in Mobile.But i dont know what it is? i was googling two more sites.i did not understand it.Please anybody having knowledge about USSD Commands, share with me. How it is useful when we using USSD Commands with our j2me…
Saravanan
  • 11,372
  • 43
  • 143
  • 213
6
votes
0 answers

creating proxies from mobile sim cards

I have a problem and i don't know where to start. My requirement is as follow. Let's say i have 10 mobile sim cards with 1Gb data traffic available on them. I need a way to insert this 10 sim cards into a device and be able to use the internet from…
user978123
  • 343
  • 4
  • 12
6
votes
1 answer

SMS encryption over GSM

I have read this somewhere: Most mobile operators encrypt all mobile communication data, including SMS messages In GSM, messages are encrypted using A5/1 but even when encrypted, the data held by SMS is readable for the operator. Mobile phone…
Ankita_K
  • 653
  • 2
  • 12
  • 21
6
votes
2 answers

CME Error :10 - Sim not inserted error in SIM800 GSM Module

I get +CME ERROR: 10 on setting AT+COPS=1 Below is my terminal AT command output: AT OK AT+CSQ +CSQ: 12,0 OK AT+CMEE=1 OK AT+COPS=? +COPS: (2,"405800","405800","405800"),(1,"40505","40505","40505"),(‌​‌​1,"AirTel","AirTel‌​",‌​"40410"),(1,"…
navjosh
  • 187
  • 2
  • 2
  • 13
6
votes
1 answer

Android MCC and MNC

I'm trying to get the mcc and mnc after a SIM LOADED state, in order to check if the SIM card did change without READ PHONE STATE permissions, in order to disable the app requests for some networks and in some countries that the user do not…
Luis Pereira
  • 1,481
  • 3
  • 19
  • 46
6
votes
2 answers

How to concat long SMS in GSMComm Library?

Here is my code: According to this page the CreateConcatTextMessage method returns an array with type SmsSubmitPdu[] but, when I try to send it with SendMessages I get a MessageServiceError 500. What am I missing? SmsSubmitPdu[] pdu2; …
Dac
  • 210
  • 3
  • 19
6
votes
3 answers

Cell (cell-id), BTS and BSS in GSM network

what is the relation between BTS and cell? I think one BTS hardware can cover few cells and also some cells could be covered by more than one BTS isn't it? Is part of information, that mobile receives from GSM network identification of concrete BTS…
STeN
  • 6,262
  • 22
  • 80
  • 125
1 2 3
…
98 99