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BGS5T - Cannot manage CSD incoming call from Java Midlet | Telit Cinterion IoT Developer Community

January 16, 2015 - 1:28pm, 3959 views


I am porting a java Midlet from TC65T to BGS5T, and I have a problem with CSD incoming calls.

Our Midlet manages incoming CSD calls with a class called CSDListener that implements ATCommandListener, where we implemented, among others, this method:

public void RINGChanged(boolean arg0) {

if (arg0 == true) {

String response;

response = atc.execCommandCSD("ATA");




Then we register CSDListener with ATCommand.addListener() this way:


commandCSD = new ATCommand(true);

csdListener = new CSDListener();



But when I start a CSD connection from a TC65T to the BGS5T, this method is never called, no way to catch the incoming call.

The SIM cards we are using are enabled for CSD connections. Indeed, if I substitute the BGS5T with a TC65T with the same SIM card and the same software the CSD call works very well.

I tried to call the BGS5T without the midlet running, and I saw the RINGs arriving on the serial interface, so the module effectively can receive the call.

I tried to check the at^scfg configuration about 'Ringline' parameters but I noticed something strange:

The At command documentation (bgs5_atc_ext.pdf) show these commands among others:

^SCFG: "URC/Ringline", (list of supported <urcRinglineCfg>s)

^SCFG: "URC/Ringline/ActiveTime", (list of supported <urcRinglineDuration>s)

But they are not present in my BGS5T when I type at^scfg?, they are not known by the module.

May someone help me, please?

Thank you very much!

We are using these settings:









E1 Q0 V1 X0 &C1 &D65535 &S0 \Q3

S0:000 S3:013 S4:010 S5:008 S6:000 S7:060 S8:000 S10:002

+CBST: 71,0,1

+CRLP: 61,61,78,6

+CR: 0

+CRC: 0

+CMGF: 0

+CNMI: 1,0,0,0,0

+CMEE: 0

+CSMS: 0,1,1,1

+CREG: 0,1

+CLIP: 0,2

+COPS: 0,0,"I TIM",0



^SCFG: "Call/ECC","0"

^SCFG: "Gpio/mode/ASC1","std"

^SCFG: "Gpio/mode/DAI","gpio"

^SCFG: "Gpio/mode/DCD0","std"

^SCFG: "Gpio/mode/DSR0","std"

^SCFG: "Gpio/mode/DTR0","std"

^SCFG: "Gpio/mode/FSR","gpio"

^SCFG: "Gpio/mode/PULSE","gpio"

^SCFG: "Gpio/mode/PWM","gpio"

^SCFG: "Gpio/mode/RING0","std"

^SCFG: "Gpio/mode/SPI","rsv"

^SCFG: "Gpio/mode/SYNC","std"

^SCFG: "GPRS/AutoAttach","enabled"

^SCFG: "Ident/Manufacturer","Cinterion"

^SCFG: "Ident/Product","BGS5"

^SCFG: "MEopMode/SoR","on"

^SCFG: "MEShutdown/Fso","0"

^SCFG: "Radio/OutputPowerReduction","4"

^SCFG: "Serial/Interface/Allocation","1","1"

^SCFG: "Serial/USB/DDD","0","0","0409","1E2D","0059","Cinterion Wireless Modules","Cinterion BGx USB Com Port",""

^SCFG: "Tcp/IRT","3"

^SCFG: "Tcp/MR","10"

^SCFG: "Tcp/OT","6000"

^SCFG: "Tcp/WithURCs","on"

^SCFG: "Trace/Syslog/Otap","0"

^SCFG: "Userware/Autostart","0"

^SCFG: "Userware/Autostart/Delay","5"

^SCFG: "Userware/Passwd",

^SCFG: "Userware/Stdout","null",,,,"off"

^SCFG: "Userware/Watchdog","0"

^SCFG: "Radio/Band","15"