Data & Fax Functionality of the SIEMENS Combiset GSM.
1 2 3 4 5 6 7 Prerequisites and Recommendations .......................................................................................... 4 1.1 Computer HW and SW requirements/recommendations ....................................................... 4 1.2 Telecommunication requirements/recommendations ............................................................ 4 Combiset Installation ...................................................................................................................
7.5.1 Bearer type selection +CBST ..................................................................................... 32 7.5.2 Report control +CR, +CRC ......................................................................................... 32 7.5.3 Echo E ....................................................................................................................... 33 7.5.4 Fixed DTE rate +IPR ..................................................................................................
1 Prerequisites and Recommendations 1.1 Computer HW and SW requirements/recommendations The underneath PC requirements describes the minimum baseline to be supported. The recommendations are not exclusive and does not conclusively imply incompatibility with other HW or SW platforms. • 386 PC or higher Memory, disk space, speed and peripherals as required to run Windows '95 will be sufficient to drive the Combiset.
– – – • BS26, (9600 baud, V110 and V32) BS25, (4800 baud, V32) BS24, (2400 baud, V110 and V22bis) PIN Number The PIN number deserves a prominent discussion due to its likeliness to derail the users attempts to data connection. Note that this security feature which is inherent to the GSM network, distinguishes the Combiset from the properties of ordinary fixed-line modems.
Indicate in the following window that the modem will be manually selected by clicking the checkbox. The next installation window lists modem types and models. Within the category 'Standard Modem Types' Choose 'Standard 9600 bps Modem'. The last window inquires which physical communication port must be used. Ensure that you select the appropriate COM port corresponding to where the data cable is plugged in. (i.e.
Verify once more that the appropriate 'COM port' is selected, as well as that the 'Maximum speed' is set to 9600 bps. Then choose 'Settings' and insure that the settings are as follows Data bits: 8 Parity: None Stop Bits: 1 Click on the option 'Advanced' and verify that the flow control option is selected and set as follows: Flow Control: Hardware (RTS/CTS) The modem driver for your Combiset is now installed and should be tested/diagnosed.
The modem test will take a few seconds after which the 'Test Results/Details' window should show all tests 'OK'. The modem driver is now successfully installed and any application software running on Windows 95, should be able to do data communication via the Combiset using the appropriate COM port. ADVANCED USERS: Within the 'Control Panel' under 'Modems' install a 'Standard 9600 bps Modem' by manual selection from the Windows 95 modem drivers list.
Select ‘New Connection’ and enter a name for the Remote Connection which you are now creating. (ex. My Service Provider). As driver choose the ‘Standard 9600 bps Modem‘ which you have installed in the previous section of this document. In the next window enter the area code and telephone of your target access point (i.e. your service provider) and confirm. Once the new connection information has been entered it is created as an icon under ‘Desktop – Remote Network’ with the user defined name (i.e.
Refer to Section 4 to create a Remote Access Connection to your Internet Service Provider. Once completed verify the connection properties by method of ‘right click’ on the newly created icon (‘My Service Provider’) and choose the option ‘properties’. Verify the telephone number of your Service Provider and that the Standard 9600 bps Modem (as installed in Section 3) will be used. Also verify that RAS server is of type PPP for Windows ’95 and ensure that only TCP/IP is enabled as a network protocol.
Go to ‘Edit-Preferences-Advanced-Proxies’ and select ‘Direct connection to the Internet’. Confirm, Return to Browser screen and in the ‘Location’ box type in ‘www.siemens.com’, enter and enjoy Internet access via your Siemens COMBISET GSM. 6 Using a Terminal Emulator The Combiset can be driven from a from a terminal emulator with the use of AT commands.
• Terminal line settings Currently, the GSM module handler is set to 9600 bps, 8 bits data, 1 bit stop, no parity, RTS/CTS flow control. Please use the commands +IPR, +IFC, +ICF to change these settings. • Command line Commands always finish with a character. • Information responses and result codes Responses start and end with , except with the ATV0 (DCE response format) and ATQ1 (result code suppression) commands. - If the syntax command is wrong, the string ERROR is sent.
Direct dialling from a phonebook location (stored in SIM card) can be done with the following command: ATD>17; or ATD>SIM17; (voice call here) ATD>“FRED“; for calling „FRED“ from the phonebook 7.1.2 Hang-Up command H This command is used by the application to disconnect the remote user. The application sends: Application to GSM GSM to application ATH OK Ask for disconnection Even if there is no communication established 7.1.
Application to GSM GSM to application Application to GSM GSM to application Application to GSM GSM to application AT+VTS=A OK AT+VTS=11 +CME ERROR:4 AT+VTS=4 +CME ERROR:3 command valid if the is wrong If there is no communication Example: to send the Tone sequence 13#, the application shall send: AT+TS=1 OK and then wait for AT+VTS=3 OK and then wait for AT+VTS=# OK and then wait for 7.1.6 Operator selection +COPS To select the operator, two possibilities exist: 1.
Application to GSM GSM to application ATDL OK +49897220; Redial last number Last Call was a speech call command valid 7.1.8 Signal Quality +CSQ This command shall be used to know the received signal strength indication () and the channel bit error rate () with or without any SIM card inserted. : 0: 1: 2...30 : 31 : 99 : -113dBm or less -111 dBm -109 to –53 dBm -51dBm or greater not known or not detectable 0...7 99 : as RXQUAL values in the table GSM 05.
All others S-parameters (S6, S7, S8 ...) are not implemented. 7.1.11 Gain control +VGR, +VGT This command shall be used by the application to tune the receive gain of the speaker and transmit gain of the microphone.
7.2.3 Request revision identification +CGMR This command is used to get the software version. Application to GSM GSM to application AT+CGMR V2.74 OK get software version command valid 7.2.4 Capabilities list +GCAP This command gives the complete capabilities list. Application to GSM GSM to application AT+GCAP +CGSM +FCLASS OK get capabilities list supports GSM commands and FAX 7.2.5 Phone activity status +CPAS This command returns the activity status of the mobile.
When the application wants to re-start the module (after having done a AT+CFUN=0 command, and without having cut the power supply), it has to send: AT+CFUN=1,1 This command starts again all the GSM stack and GSM functionality.
+CPIN:SIM PIN +CPIN: SIM PUK +CME ERROR: PIN is required PUK is required SIM failure (13) absent (10) etc..... The state „SIM PIN“ is entered only when PIN is enabled and required. Please note that in this case the mobile does not finish its response with the OK string. The response +CME ERROR: 13 (SIM failure) is returned after 10 unsuccessful PUK presentations. The SIM card is then out of order and shall be replaced by a new one.
The password length is given with the AT+CPWD = ? command.
7.2.12 Read phonebook entries +CPBR This command returns phonebook entries for a location range from the current phonebook memory storage selected with +CPBS.
Originator address. Protocol identifier. Binary string coded as specified in document [4] Recipient address. Address of the service centre. Service centre time stamp. Status. Status of message in memory. Integer format of . Integer format of . Integer format of . Validity period of the message. 7.3.
The chosen format is stored in E2PROM by the command +CSAS.
Application to GSM GSM to application AT+CRES OK Restore command correct 7.3.7 Select TE character set +CSCS This commands informs the ME which set is used by the TE. ME is then able to convert character strings correctly. This is used for commands +CMGS in text mode. Application to GSM GSM to application Application to GSM GSM to application AT+CSCS = „GSM“ OK AT+CSCS = „PCCP437“ OK GSM default alphabet Command valid PC character set Code Page 437 Command valid 7.3.
1 SMS-STATUS-REPORT are routed using unsolicited code: +CDS: (if PDU mode chosen) or +CDS: , [, , ], , - , (text mode) 1..3 is entered (OK response shall be given before flushing the codes) TA buffer of unsolicited result codes defined within this command is cleared when 1...3 is entered.
Application to GSM GSM to application Application to GSM GSM to application AT+CMGR=2 +CMS ERROR: 321 AT+CMGR=1 +CMGR: "REC READ", OK read + bad index error : invalid index in PDU mode 7.3.10 List message +CMGL This command allows the application to read stored messages, by indicating the type of the message to read.
GSM to application Application to GSM GSM to application Hello, how are you ? +CMGS : OK AT+CMGS= +CMGS : OK Successful transmission Send a message in PDU mode Successful transmission The message reference which is returned back to the application is allocated by the GSM module. This number begins with 0 and is incremented by one for each outgoing message (successful and failure case) ; it is cyclic on one byte (0 follows 255).
Hence, the application has to indicate this address at initialisation. This address then remains valid until changed by the application. For example, suppose that no AT+CSCA has been already sent.
AT+CCFC=,[, ] : 0 1 2 3 4 5 unconditional mobile busy no reply not reachable all call forwarding all conditional call forwarding 2 3 4 interrogate registration erasure : Application to GSM GSM to application Application to GSM GSM to application Application to GSM GSM to application AT+CCFC=0,3,49897220 OK AT+CCFC=0,2 +CCFC=1,7,49897220 OK AT+CCFC=0,4 OK register call forwarding unconditional command valid interrogate call forwarding unconditional call forwarding
7.4.3 Modify SS password +CPWD This command shall be used by the application to change the supplementary service password. The syntax is: AT+CPWD=,, for see +CLCK command.
0 1 2 CLIR not provisioned CLIR provisioned Unknown (no network) Application to GSM GSM to application Application to GSM GSM to application AT+CLIR=2 OK AT+CLIR? +CLIR: , OK command valid Ask for current functionality "n" and “m” as defined above 7.4.
Application to GSM GSM to application 7.5 AT+COLP=0 OK Deactivate COLP command valid AT commands for Data 7.5.1 Bearer type selection +CBST The syntax of the command is AT+CBST=,0, The selection of the bearer impacts on both incoming and outgoing calls. No data compression is provided and only asynchronous modem is supported.
GSM to application OK Application to GSM AT+CR=1 GSM to application OK The Default value is stored in E2PROM. command valid extended reports enabled Command valid 7.5.2.2 Incoming Call +CRC This command enables a more detailed ring indication, in the event of an incoming call (voice or data). Instead of the string "RING", an extended string is used to indicate which type of call is ringing. (e.g.
7.5.7 DCE response format V Determines the DCE response format, with or without header characters , and with the use of numerical result codes.
Application to GSM GSM to application ATZ OK command valid 7.5.11 DTE-DCE local flow control +IFC This command is used to control the operation of local flow control between the DTE and DCE.
Application to GSM GSM to application AT&W OK writes current configuration to E2prom command valid 7.5.16 Radio link protocol parameters +CRLP This command allows to change the radio link protocol parameters used for non transparent data transmission. AT+CRLP=,,, , Application to GSM GSM to application Application to GSM GSM to application 7.
Application to GSM GSM to application AT+CEER +CEER : Error OK ask for reason of release is the cause information element values from GSM recommendation 04.08 The cause information element from GSM 04.08 is given below. 7.7.
18 19 21 22 26 27 28 29 30 31 34 38 41 42 43 44 47 49 50 55 57 58 63 65 68 69 70 79 81 87 88 91 95 96 97 98 99 100 101 102 111 127 252 253 254 255 No user responding User alerting, no answer Call rejected Number changed Non selected user clearing Destination out of order Invalid number format (incomplete number) Facility rejected Response to STATUS ENQUIRY Normal, unspecified No circuit/channel available Network out of order Temporary failure Switching equipment congestion Access information discarded requ
7.7.6 GSM 04.11 Annex E-2: Mobile originating SM-transfer Cause no 1: "Unassigned (unallocated) number" This cause indicates that the destination requested by the Mobile Station cannot be reached because, although the number is in a valid format, it is not currently assigned (allocated). Cause no 8: "Operator determined barring" This cause indicates that the MS has tried to send a mobile originating short message when the MS's network operator or service provider has forbidden such transactions.
Cause no 47: "Resources unavailable, unspecified" This cause is used to report a resource unavailable event only when no other cause applies. Cause no 69: "Requested facility not implemented" This cause indicates that the network is unable to provide the requested short message service.
7.7.
