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OZEKI NG SMS Gateway - Product Guide

MMS downloads Contents | SearchInstallation of a Sierra Fastrack modem

Home > Product Manual > Installation Guide > Service Provider Connections > GSM Modem connectivity > GSM modem debugging

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  Product Manual
  Introduction
  SMS technology
  Installation Guide
  Prerequisites
  Download Information
  Installation Steps
  Service Provider Connections
  GSM Modem connectivity
  Installation of a Wavecom modem
  Multiple modems
  Installation of a modem driver
  CMS Error codes
  Connection problem
  USB connection
  Manual USB driver installation
  MMS downloads
  GSM modem debugging
  Installation of a Sierra Fastrack modem
  Change frequency in Wavecom modem
  Transfer calls from SIM card
  Serial over Ethernet connection
  Send MMS
  SMPP connection
  UCP Connection
  CIMD2 Connection
  HTTP Client connection
  HTTP Server connection
  Service providers
  Send MMS via MM7
  Receive MMS via MM7
  Send/receive MMS via EAIF
  SAG ParlayX SOAP/XML
  TDC
  SNPP Connection
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GSM modem debugging

Download Hyper Terminal

This troubleshooting page helps you find the possible reasons of GSM modem problems. Please browse through this page to be sure that your GSM modem operates effectively.

Steps for connecting the GSM modem to the PC

  1. First of all, when you start to configure your GSM modem connectivity you need to put the SIM card into the GSM modem. If you put the SIM card properly into the GSM modem then the modem will blink.

  2. Then the GSM modem needs to be connected to the PC. If the computer has a serial port (RS232) then the serial cable of the GSM modem can be used for connection. If the computer does not have serial port, you will need an USB-RS232 converter.

  3. If the GSM modem has been connected to the computer, check the port used by the GSM modem in Device Manager.

Commands for Hyper Terminal

Now please start Hyper Terminal. Select the port that is used by the GSM modem in Connect using field (You have checked the port in the previous step). Click on OK (Figure 1).


Figure 1 - Select the port

Select the port properties in the next window (Figure 2). Wavecom modems need 115200 Bits per second bandwidth.


Figure 2 - Port properties

Type at and press Enter in Hyper Terminal. This at command calls the modem. OK is returned from the modem (Figure 3). If OK is not returned back or there is no response at all then the modem does not support at commands.


Figure 3 - Call the modem

TYPE: at+cgmi and press Enter.
RESPONSE: modem manufacturer information (Figure 4).


Figure 4 - Modem manufacturer information

TYPE: at+cgmm and press Enter.
RESPONSE: list of supported frequency bands (Note: GSM 900 MHz primary band. Other possible answers: "900E" (extended band), "1800" (DCS), "1900" (PCS) or "MULTIBAND") (Figure 5).


Figure 5 - List of supported frequency bands

TYPE: at+cpas and press Enter (Figure 6).
RESPONSE: This command returns the activity status of the mobile equipment.

0: ready (allow commands from TA/TE)
1: unavailable (does not allow commands)
2: unknown
3: ringing (ringer is active)
4: call in progress
5: asleep (low functionality)


Figure 6 - Activity status of the mobile equipment

TYPE: at+cops? and press Enter (Figure 7).
RESPONSE: current operator information.
Response value: mode, format, operator


Figure 7 - Current operator information

TYPE: at+cops=? and press Enter.
RESPONSE: information about all the available operator.

Response syntax for AT+COPS=?: +COPS: [list of supported (<stat>, long alphanumeric <oper>, short alphanumeric <oper>s, numeric <oper>) s]

The parameters are the following ones:

<mode>
0: automatic (default value)
1: manual
2: deregistration ; ME will be unregistered until <mode>=0 or 1 is selected.
3: set only <format> (for read command AT+COPS?)
4: manual / automatic (<oper> shall be present), if manual selection fails, automatic mode is entered.
<format>: format of <oper> field

<format>
0: long alphanumeric format <oper>
1: short alphanumeric format <oper>
2: numeric <oper> (default value) <stat>: status of <oper>

<stat>
0: unknown
1: available
2: current
3: forbidden

<oper>
Operator identifier (MCC/MNC in numeric format only for operator selection)
The long alphanumeric format can be up to 16 characters long (see appendix 18.12 for operator names description, field is "Name")
The short alphanumeric format can be up to 8 characters long.


Figure 8 - Information about all the available operator

TYPE at+creg? and press Enter.
RESPONSE: information about network registration status

Response value:
+CREG: <mode>,<stat>

<mode>
0: Disable network registration unsolicited result code (default)
1: Enable network registration code result code +CREG : <stat>
2: Enable network registration and location information unsolicited result code +CREG:
<stat>,<lac>,<ci> if there is a change of network cell.

<stat>
0: not registered, ME is not currently searching for a new operator.
1: registered, home network.
2: not registered, ME currently searching for a new operator to register to.
3: registration denied.
4: unknown.
5: registered, roaming.


Figure 9 - Network registration status

TYPE at+cpin? and press Enter.
RESPONSE: PIN code status

+CPIN: READY: it does not require PIN code or the PIN code has been entered properly.


Figure 10 - PIN code status

Sending SMS from Hyper Terminal

To send test SMS messages from Hyper Terminal please type the following parameters in (Figure 11):

TYPE: at and press Enter.
RESPONSE: OK

TYPE: at+cmgs="recipient phone number" press Enter (For example: at+cmgs="+36301234567")
RESPONSE: >. Please type the message you wish to send out. (For example: > test message from Hyper Terminal)

Now press CTRL + Z
Response: +CMGS: 83 that is a confirmation and OK.

After you entered these parameters the message will be sent out. Please note that SMS messages will be sent in Text mode instead of PDU.


Figure 11 - Parameters for sending SMS from Hyper Terminal

Reference:
AT Commands Interface Guide

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