During active call session when hanging up the active call though AT Command "ATH". We are getting the response "Ok" but after that, other AT Commands not get any responses. Like AT+CSQ, AT+CREG, AT+SMONI, or for simple "AT" COmm | Telit Cinterion IoT Developer Community

August 10, 2020 - 8:59am, 4263 views

Modules

Hello All,

we are facing issue in the GSM Modem side during voice calls, below are our observations.

Issue: - During active call session when hanging up the active call though AT Command "ATH".

We are getting the response "Ok" but after that, other AT Commands not get any responses.

Like AT+CSQ, AT+CREG, AT+SMONI, or for simple "AT" COmmand also not receiving any responses.

A. Observation 1 :

1. GPRS session(Packet Transmission and reception) was not active after the GSM power-on.

2. Voice Call Session(Incoming call received /outgoing call dialed ) started and call status is " ACTIVE ".

3. And requested for the Call hang up the session through "ATH" Command.

4. "ATH" Command receive "OK" Response

5. All other AT Commands also execute properly with the expected response.

B. Observation 2:

Test Log files :

1. GPRS Session was active after the power-on (Able to see the packet transmission and reception ) .

2. Voice Call Session(Incoming call received /outgoing call dialed ) started and call status is " ACTIVE ".

3. And requested for the active call hang up the session through "ATH" Command

4. "ATH" Command receive "OK" Response

5. But after this, other AT Commands do not get any response.

GSM BGS5 Module Details :

Manufacturer: Cinterion
Device MOdule: BGS5
Firmware Version: REVISION 01.100
Application Revision Number: A-REVISION 00.001.36

Please help.

Thanks

Comment

tymoteusz.lipinski

Aug 10 2020 - 3:25pm

Hello Sumo,

could you elaborate on this point?
GPRS Session was active after the power-on (Able to see the packet transmission and reception ) .

Please tell me if by GPRS session active you mean:
1) PPP/dial-up
2) socket data transfer using modem internet services?

It would be very helpful if you could paste AT log from modem startup till the problematic moment.

BR
Tymek

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sumo

Aug 11 2020 - 7:36pm

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sumo

Aug 11 2020 - 7:57pm

Hello Tymek,

Please tell me if by GPRS session active you mean:

GPRS Session active means socket data transfer using modem internet. Able to send and receive data to the server .

I have almost tried all debugging paths to get this issue root cause but still on the point.

As per your request sending logs of AT command and their responses after module powerup.

Please have look and let me know your suggestion or pointers to debug the root cause.

Though all my debugging paths i am seeing this issue at the module side but not sure and don't know how to prove it.

[2020-08-11 22:23:02:133_R:] ^SYSSTART

[2020-08-11 22:23:06:909_R:] +PBREADY

[2020-08-11 22:23:30:482_R:] AT+CPIN?

[2020-08-11 22:23:30:588_R:] +CPIN: READY

[2020-08-11 22:23:31:784_R:] AT+IPR=115200

[2020-08-11 22:23:31:876_R:] OK

[2020-08-11 22:23:32:933_R:] AT\Q0

[2020-08-11 22:23:33:041_R:] OK

[2020-08-11 22:23:34:084_R:] AT+CMGF=1

[2020-08-11 22:23:34:166_R:] OK

[2020-08-11 22:23:35:235_R:] AT+CSCS="GSM"

[2020-08-11 22:23:35:305_R:] OK

[2020-08-11 22:23:36:385_R:] AT+CNMI=2,1

[2020-08-11 22:23:36:446_R:] OK

[2020-08-11 22:23:37:539_R:] AT+CPMS="SM","SM","SM"

[2020-08-11 22:23:37:564_R:] +CPMS: 0,25,0,25,0,25

[2020-08-11 22:23:37:625_R:] OK

[2020-08-11 22:23:38:688_R:] ATE0

[2020-08-11 22:23:38:735_R:] OK

[2020-08-11 22:23:44:196_R:] AT Tx:ATI1

[2020-08-11 22:23:44:242_R:] Cinterion

[2020-08-11 22:23:44:253_R:] BGS5

[2020-08-11 22:23:44:253_R:] REVISION 01.100

[2020-08-11 22:23:44:253_R:] A-REVISION 00.001.36

[2020-08-11 22:23:44:274_R:] OK

[2020-08-11 22:23:49:203_R:] AT Tx:AT^SCFG="GPIO/mode/DAI","std"

[2020-08-11 22:23:49:468_R:] ^SCFG: "Gpio/mode/DAI","std"

[2020-08-11 22:23:49:500_R:] OK

[2020-08-11 22:23:49:556_R:] AT Tx:AT+VTD=5;

[2020-08-11 22:23:49:590_R:] OK

[2020-08-11 22:23:49:708_R:] AT Tx:AT^SNFS=3;

[2020-08-11 22:23:49:788_R:] OK

[2020-08-11 22:23:49:861_R:] AT Tx:AT^SNFI=95

[2020-08-11 22:23:49:904_R:] OK

[2020-08-11 22:23:50:012_R:] AT Tx:AT^SNFO=95,10

[2020-08-11 22:23:50:067_R:] OK

[2020-08-11 22:23:50:164_R:] AT Tx:AT^SRTC=2,4

[2020-08-11 22:23:50:205_R:] ^SRTC: 2,4

[2020-08-11 22:23:50:231_R:] OK

[2020-08-11 22:23:50:315_R:] AT Tx:AT+CCWA= 1,0,1

[2020-08-11 22:23:52:506_R:] +CCWA: 0,1

[2020-08-11 22:23:52:528_R:] OK

[2020-08-11 22:23:52:667_R:] AT Tx:AT+CRC =1

[2020-08-11 22:23:52:732_R:] OK

[2020-08-11 22:23:52:818_R:] AT Tx:AT+CLIP =1

[2020-08-11 22:23:52:863_R:] OK

[2020-08-11 22:23:52:970_R:] AT Tx:ATX4

[2020-08-11 22:23:53:020_R:] OK

[2020-08-11 22:23:53:226_R:] AT Tx:AT+CREG?

[2020-08-11 22:23:53:256_R:] +CREG: 0,1

[2020-08-11 22:23:53:277_R:] OK

[2020-08-11 22:23:53:378_R:] AT Tx:AT+CGREG?

[2020-08-11 22:23:53:403_R:] +CGREG: 0,1

[2020-08-11 22:23:53:428_R:] OK

[2020-08-11 22:23:53:580_R:] AT Tx:AT+CCID

[2020-08-11 22:23:53:616_R:] +CCID: 8991272172920340544

[2020-08-11 22:23:53:638_R:] OK

[2020-08-11 22:23:53:732_R:] AT Tx:AT+GSN

[2020-08-11 22:23:53:804_R:] 356029099287418

[2020-08-11 22:23:53:827_R:] OK

[2020-08-11 22:23:53:882_R:] AT Tx:AT^SMONI

[2020-08-11 22:23:53:911_R:] ^SMONI: 2G,62,-84,404,22,ED1B,4E3F,22,22,6,7,E,NOCONN

[2020-08-11 22:23:53:925_R:] OK

[2020-08-11 22:23:53:983_R:] AT Tx:AT+CSQ

[2020-08-11 22:23:54:005_R:] +CSQ: 15,99

[2020-08-11 22:23:54:025_R:] OK

[2020-08-11 22:23:57:136_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:23:57:192_R:] OK

[2020-08-11 22:23:57:240_R:] AT Tx:AT^SICS=0,USER,""

[2020-08-11 22:23:57:325_R:] OK

[2020-08-11 22:23:57:347_R:] AT Tx:AT^SICS=0,PASSWD,""

[2020-08-11 22:23:57:452_R:] OK

[2020-08-11 22:23:57:545_R:] AT Tx:AT^SICS=0,APN,*****.com

[2020-08-11 22:23:57:610_R:] OK

[2020-08-11 22:23:57:648_R:] AT Tx:AT^SISS=0,SRVTYPE,SOCKET

[2020-08-11 22:23:58:188_R:] OK

[2020-08-11 22:23:58:255_R:] AT Tx:AT^SISS=0,address,socktcp://****.*******.**:4444

[2020-08-11 22:23:58:336_R:] OK

[2020-08-11 22:23:58:364_R:] AT Tx:AT^SISS=0,CONID,0

[2020-08-11 22:23:58:494_R:] OK

[2020-08-11 22:23:58:611_R:] AT Tx:AT+CIMI

[2020-08-11 22:23:58:635_R:] 404277292034054

[2020-08-11 22:23:58:656_R:] OK

[2020-08-11 22:23:58:761_R:] ITU Header = 404

[2020-08-11 22:23:58:788_R:] ITU MNC = 277

[2020-08-11 22:23:58:788_R:] SIM IMSI= **************

[2020-08-11 22:23:58:788_R:] AT Tx:AT+GSN

[2020-08-11 22:23:58:826_R:] 356029099287418

[2020-08-11 22:23:58:840_R:] OK

[2020-08-11 22:23:58:921_R:] AT Tx:AT+CCID

[2020-08-11 22:23:58:947_R:] +CCID:*************

[2020-08-11 22:23:58:971_R:] OK

[2020-08-11 22:23:59:099_R:] AT Tx:AT^SISC=0

[2020-08-11 22:23:59:154_R:] OK

[2020-08-11 22:24:02:189_R:] AT Tx:AT^SISO=0

[2020-08-11 22:24:02:448_R:] OK

[2020-08-11 22:24:04:854_R:] ^SISW: 0,1

[2020-08-11 22:24:04:854_R:] - set vringcheck flag

[2020-08-11 22:24:04:991_R:] AT Tx:AT+CREG?

[2020-08-11 22:24:05:018_R:] +CREG: 0,1

[2020-08-11 22:24:05:038_R:] OK

[2020-08-11 22:24:05:142_R:] AT Tx:AT+CGREG?

[2020-08-11 22:24:05:168_R:] +CGREG: 0,1

[2020-08-11 22:24:05:187_R:] OK

[2020-08-11 22:24:05:344_R:] AT Tx:AT^SMONI

[2020-08-11 22:24:05:380_R:] ^SMONI: 2G,62,-83,404,22,ED1B,4E3F,23,23,6,7,E,NOCONN

[2020-08-11 22:24:05:405_R:] OK

[2020-08-11 22:24:05:446_R:] AT Tx:AT+CSQ

[2020-08-11 22:24:05:472_R:] +CSQ: 15,99

[2020-08-11 22:24:05:498_R:] OK

[2020-08-11 22:24:06:234_R:] AT Tx:AT^SISW=0,175

[2020-08-11 22:24:06:755_R:] ^SISW: 0,175,0

[2020-08-11 22:24:06:850_R:] AT Tx:<P,FB,,G,SM420840,4146,@G'$A:8999709248.9637929966.+918275398582.9359496858.8793747543.8793747543.8793747543.8793747543.8793747543.8793747543.26.1.1.0.4.2.1.2.3.1.1.45.2.0'>

[2020-08-11 22:24:07:141_R:] OK

[2020-08-11 22:24:07:234_R:] ^SISW: 0,1

[2020-08-11 22:24:07:312_R:] ^SISR: 0,1

[2020-08-11 22:24:07:362_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:07:749_R:] ^SISR: 0,34

[2020-08-11 22:24:08:060_R:] OK

[2020-08-11 22:24:09:064_R:] AT Tx:AT^SISW=0,218

[2020-08-11 22:24:09:220_R:] ^SISW: 0,218,0

[2020-08-11 22:24:09:285_R:] AT Tx:<P,F0,,G,SM420840,4150,@G'$A:FFFE00003FD00006.C8C0.000000.5F331A77..01.A.00000000.2B854F85.B63932C.15FF.20F.3E8.05.3...0..0.42F.0.0.0.FF1F.0.0.2C...00...18..0.2B854F85.B63932C.563.19.0.0.0.0.0.1.0.7.0.0000.5F331A78'>

[2020-08-11 22:24:09:589_R:] OK

[2020-08-11 22:24:09:682_R:] ^SISW: 0,1

[2020-08-11 22:24:09:834_R:] ^SISR: 0,1

[2020-08-11 22:24:09:881_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:09:999_R:] ^SISR: 0,34

[2020-08-11 22:24:10:053_R:] <A,F0,,G,SM420840,4150,@G'$:Ok'>

[2020-08-11 22:24:10:231_R:] OK

[2020-08-11 22:24:11:282_R:] AT Tx:AT^SISW=0,216

[2020-08-11 22:24:11:395_R:] ^SISW: 0,216,0

[2020-08-11 22:24:11:504_R:] AT Tx:<P,F0,,G,SM420840,4149,@G'$A:FFFE00003FD00006.C800.000000.5F331A5E..03.A.000000.2B854F85.B63932C.15FF.20F.3E8.05.3...0..0.434.0.0.0.FF1E.0.0.2D...00...18..0.2B854F85.B63932C.563.19.0.0.0.0.0.1.0.6.0.0000.5F331A5F'>

[2020-08-11 22:24:11:748_R:] OK

[2020-08-11 22:24:11:873_R:] ^SISW: 0,1

[2020-08-11 22:24:13:279_R:] ^SISR: 0,1

[2020-08-11 22:24:13:301_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:13:450_R:] ^SISR: 0,34

[2020-08-11 22:24:13:486_R:] <A,F0,,G,SM420840,4149,@G'$:Ok'>

[2020-08-11 22:24:13:663_R:] OK

[2020-08-11 22:24:14:681_R:] AT Tx:AT^SISW=0,218

[2020-08-11 22:24:14:758_R:] ^SISW: 0,218,0

[2020-08-11 22:24:14:802_R:] AT Tx:<P,F0,,G,SM420840,4148,@G'$A:FFFE00003FD00006.4000.004000.5F331A5E..31.A.000000.2B854F85.B63932C.15FF.20F.3E8.05.3...0..190.435.0.0.0.FF24.0.0.2B...00...18..0.2B854F85.B63932C.563.19.0.0.0.0.0.1.0.5.0.0000.5F331A5E'>

[2020-08-11 22:24:15:008_R:] OK

[2020-08-11 22:24:15:119_R:] ^SISW: 0,1

[2020-08-11 22:24:15:686_R:] ^SISR: 0,1

[2020-08-11 22:24:15:719_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:15:793_R:] ^SISR: 0,34

[2020-08-11 22:24:15:830_R:] <A,F0,,G,SM420840,4148,@G'$:Ok'>

[2020-08-11 22:24:15:991_R:] OK

[2020-08-11 22:24:16:316_R:] AT Tx:AT+CREG?

[2020-08-11 22:24:16:364_R:] +CREG: 0,1

[2020-08-11 22:24:16:387_R:] OK

[2020-08-11 22:24:16:468_R:] AT Tx:AT+CGREG?

[2020-08-11 22:24:16:509_R:] +CGREG: 0,1

[2020-08-11 22:24:16:537_R:] OK

[2020-08-11 22:24:16:670_R:] AT Tx:AT^SMONI

[2020-08-11 22:24:16:710_R:] ^SMONI: 2G,62,-84,404,22,ED1B,4E3F,22,22,6,7,E,NOCONN

[2020-08-11 22:24:16:740_R:] OK

[2020-08-11 22:24:16:770_R:] AT Tx:AT+CSQ

[2020-08-11 22:24:16:835_R:] +CSQ: 15,99

[2020-08-11 22:24:16:853_R:] OK

[2020-08-11 22:24:17:613_R:] AT Tx:AT^SISW=0,175

[2020-08-11 22:24:17:693_R:] ^SISW: 0,175,0

[2020-08-11 22:24:17:729_R:] AT Tx:<P,F0,,G,SM420840,4145,@G'$A:FFFE00003FD00006.88C0.000000.5F331307..01.R.00000000....0...1...0..0.434.0.0.0.FF20.0.0.2D...00..00....0.0.0.0.0.0.0.0.0.0.0.3.0.0000.5F331307'>

[2020-08-11 22:24:17:952_R:] OK

[2020-08-11 22:24:18:068_R:] ^SISW: 0,1

[2020-08-11 22:24:21:934_R:] ^SISR: 0,1

[2020-08-11 22:24:21:959_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:22:030_R:] ^SISR: 0,34

[2020-08-11 22:24:22:054_R:] <A,F0,,G,SM420840,4145,@G'$:Ok'>

[2020-08-11 22:24:22:212_R:] OK

[2020-08-11 22:24:23:221_R:] AT Tx:AT^SISW=0,173

[2020-08-11 22:24:23:311_R:] ^SISW: 0,173,0

[2020-08-11 22:24:23:339_R:] AT Tx:<P,F0,,G,SM420840,4144,@G'$A:FFFE00003FD00006.8800.000000.5F3312EE..03.R.000000....0...1...0..0.435.0.0.0.FF23.0.0.2C...00..00....0.0.0.0.0.0.0.0.0.0.0.2.0.0000.5F3312EE'>

[2020-08-11 22:24:23:549_R:] OK

[2020-08-11 22:24:23:626_R:] ^SISW: 0,1

[2020-08-11 22:24:23:886_R:] ^SISR: 0,1

[2020-08-11 22:24:23:913_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:23:991_R:] ^SISR: 0,34

[2020-08-11 22:24:24:014_R:] <A,F0,,G,SM420840,4144,@G'$:Ok'>

[2020-08-11 22:24:24:191_R:] OK

[2020-08-11 22:24:25:165_R:] AT Tx:AT^SISW=0,173

[2020-08-11 22:24:25:271_R:] ^SISW: 0,173,0

[2020-08-11 22:24:25:383_R:] AT Tx:<P,F0,,G,SM420840,4143,@G'$A:FFFE00003FD00006.0000.004000.5F3312D6..4D..000000....0......0..190.435.0.0.0.FF20.0.0.29...00..00....0.0.0.0.0.0.0.0.0.0.0.1.0.0000.5F3312D6'>

[2020-08-11 22:24:25:586_R:] OK

[2020-08-11 22:24:25:670_R:] ^SISW: 0,1

[2020-08-11 22:24:31:616_R:] ^SISR: 0,1

[2020-08-11 22:24:31:641_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:31:705_R:] ^SISR: 0,34

[2020-08-11 22:24:31:754_R:] <A,F0,,G,SM420840,4143,@G'$:Ok'>

[2020-08-11 22:24:31:918_R:] OK

[2020-08-11 22:24:32:270_R:] AT Tx:AT+CREG?

[2020-08-11 22:24:32:348_R:] +CREG: 0,1

[2020-08-11 22:24:32:373_R:] OK

[2020-08-11 22:24:32:422_R:] AT Tx:AT+CGREG?

[2020-08-11 22:24:32:503_R:] +CGREG: 0,1

[2020-08-11 22:24:32:527_R:] OK

[2020-08-11 22:24:32:726_R:] AT Tx:AT^SMONI

[2020-08-11 22:24:32:769_R:] ^SMONI: 2G,62,-84,404,22,ED1B,4E3F,22,22,6,7,E,NOCONN

[2020-08-11 22:24:32:790_R:] OK

[2020-08-11 22:24:32:825_R:] AT Tx:AT+CSQ

[2020-08-11 22:24:32:902_R:] +CSQ: 15,99

[2020-08-11 22:24:32:927_R:] OK

[2020-08-11 22:24:33:536_R:] AT Tx:AT^SISW=0,175

[2020-08-11 22:24:33:691_R:] ^SISW: 0,175,0

[2020-08-11 22:24:33:751_R:] AT Tx:<P,FB,,G,SM420840,4142,@G'$A:8999709248.9637929966.+918275398582.9359496858.8793747543.8793747543.8793747543.8793747543.8793747543.8793747543.26.1.1.0.4.2.1.2.3.1.1.45.2.0'>

[2020-08-11 22:24:33:951_R:] OK

[2020-08-11 22:24:34:053_R:] ^SISW: 0,1

[2020-08-11 22:24:36:286_R:] ^SISR: 0,1

[2020-08-11 22:24:36:314_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:36:391_R:] ^SISR: 0,34

[2020-08-11 22:24:36:424_R:] <A,FB,,G,SM420840,4142,@G'$:Ok'>

[2020-08-11 22:24:36:609_R:] OK

[2020-08-11 22:24:37:676_R:] AT Tx:AT^SISW=0,216

[2020-08-11 22:24:37:739_R:] ^SISW: 0,216,0

[2020-08-11 22:24:37:798_R:] AT Tx:<P,F0,,G,SM420840,4147,@G'$A:FFFE00003FD00006.0000.004000.5F331A43..00.A.000000.2B854F85.B63932C.15FF.0.3E8.05.3...0..190.433.0.0.0.FF21.0.0.2C...00...18..0.2B854F85.B63932C.563.19.0.0.0.0.0.0.0.5.0.0000.5F331A44'>

[2020-08-11 22:24:38:028_R:] OK

[2020-08-11 22:24:38:148_R:] ^SISW: 0,1

[2020-08-11 22:24:39:232_R:] ^SISR: 0,1

[2020-08-11 22:24:39:266_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:39:365_R:] ^SISR: 0,34

[2020-08-11 22:24:39:386_R:] <A,F0,,G,SM420840,4147,@G'$:Ok'>

[2020-08-11 22:24:39:546_R:] OK

[2020-08-11 22:24:40:560_R:] AT Tx:AT^SISW=0,229

[2020-08-11 22:24:40:666_R:] ^SISW: 0,229,0

[2020-08-11 22:24:40:781_R:] AT Tx:<P,F0,,G,SM420840,4151,@G'$A:FFFE00003FD00006.C8C0.000000.5F331A7B.15.00.A.00000011.2B854F85.B63932C.15FF.20F.3E8.05.3...0.404224E3F.0.434.0.0.0.FF20.0.0.2A...00...18..0.2B854F85.B63932C.563.19.0.0.0.0.0.1.0.8.0.0000.5F331A7C'>

[2020-08-11 22:24:40:999_R:] OK

[2020-08-11 22:24:41:103_R:] ^SISW: 0,1

[2020-08-11 22:24:41:906_R:] ^SISR: 0,1

[2020-08-11 22:24:41:936_R:] AT Tx:AT^SISR=0,400

[2020-08-11 22:24:42:042_R:] ^SISR: 0,34

[2020-08-11 22:24:42:292_R:] OK

[2020-08-11 22:24:42:719_R:] AT Tx:AT^SISC=0

[2020-08-11 22:24:43:123_R:] OK

[2020-08-11 22:24:48:386_R:] AT Tx:ATH// voice call session started

[2020-08-11 22:24:48:433_R:] OK

[2020-08-11 22:24:48:538_R:] AT Tx:ATD87937*****;

[2020-08-11 22:24:48:617_R:] OK

[2020-08-11 22:24:50:589_R:] AT Tx:AT+CLCC

[2020-08-11 22:24:50:886_R:] +CLCC: 1,0,2,0,0,"87********",129

[2020-08-11 22:24:50:908_R:] OK

[2020-08-11 22:24:50:992_R:] CHECK CALL STATUS : CALL_DIALLING

[2020-08-11 22:24:53:045_R:] AT Tx:AT+CLCC

[2020-08-11 22:24:53:347_R:] +CLCC: 1,0,3,0,0,"87********",129

[2020-08-11 22:24:53:373_R:] OK

[2020-08-11 22:24:53:446_R:] CHECK CALL STATUS : CALL_ALERTING

[2020-08-11 22:24:53:499_R:] AT Tx:AT+CGREG?

[2020-08-11 22:24:53:538_R:] +CGREG: 0,1

[2020-08-11 22:24:53:562_R:] OK

[2020-08-11 22:24:53:750_R:] AT Tx:AT^SMONI

[2020-08-11 22:24:53:802_R:] ^SMONI: 2G,62,-84,404,22,ED1B,4E3F,--,--,0,0,-,28,0,0,-83,1,A_HR

[2020-08-11 22:24:53:826_R:] OK

[2020-08-11 22:24:53:852_R:] AT Tx:AT+CSQ

[2020-08-11 22:24:53:957_R:] +CSQ: 15,1

[2020-08-11 22:24:53:978_R:] OK

[2020-08-11 22:24:55:952_R:] AT Tx:AT+CLCC

[2020-08-11 22:24:56:296_R:] +CLCC: 1,0,3,0,0,"87********",129

[2020-08-11 22:24:56:318_R:] OK

[2020-08-11 22:24:56:355_R:] CHECK CALL STATUS : CALL_ALERTING

[2020-08-11 22:24:57:089_R:] ~GET#RDDP!

[2020-08-11 22:24:58:407_R:] AT Tx:AT+CLCC

[2020-08-11 22:24:58:741_R:] +CLCC: 1,0,3,0,0,"87********",129

[2020-08-11 22:24:58:765_R:] OK

[2020-08-11 22:24:58:809_R:] CHECK CALL STATUS : CALL_ALERTING

[2020-08-11 22:25:00:862_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:01:198_R:] +CLCC: 1,0,3,0,0,"87********",129

[2020-08-11 22:25:01:222_R:] OK

[2020-08-11 22:25:01:265_R:] CHECK CALL STATUS : CALL_ALERTING

[2020-08-11 22:25:03:316_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:03:658_R:] +CLCC: 1,0,3,0,0,"87********",129

[2020-08-11 22:25:03:683_R:] OK

[2020-08-11 22:25:03:719_R:] CHECK CALL STATUS : CALL_ALERTING

[2020-08-11 22:25:04:070_R:] AT Tx:AT+CREG?

[2020-08-11 22:25:04:101_R:] +CREG: 0,1

[2020-08-11 22:25:04:130_R:] OK

[2020-08-11 22:25:04:321_R:] AT Tx:AT+CGREG?

[2020-08-11 22:25:04:358_R:] +CGREG: 0,1

[2020-08-11 22:25:04:384_R:] OK

[2020-08-11 22:25:04:572_R:] AT Tx:AT^SMONI

[2020-08-11 22:25:04:620_R:] ^SMONI: 2G,62,-84,404,22,ED1B,4E3F,--,--,0,0,-,28,0,0,-85,2,A_HR

[2020-08-11 22:25:04:651_R:] OK

[2020-08-11 22:25:04:676_R:] AT Tx:AT+CSQ

[2020-08-11 22:25:04:789_R:] +CSQ: 15,2

[2020-08-11 22:25:04:815_R:] OK

[2020-08-11 22:25:06:374_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:06:652_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:06:675_R:] OK

[2020-08-11 22:25:06:703_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:06:729_R:] AT Tx:AT^SNFM=1

[2020-08-11 22:25:06:825_R:] OK

[2020-08-11 22:25:08:880_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:09:159_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:09:182_R:] OK

[2020-08-11 22:25:09:202_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:11:235_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:11:512_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:11:535_R:] OK

[2020-08-11 22:25:11:552_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:13:588_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:13:867_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:13:888_R:] OK

[2020-08-11 22:25:13:908_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:14:942_R:] AT Tx:AT+CREG?

[2020-08-11 22:25:14:970_R:] +CREG: 0,1

[2020-08-11 22:25:14:994_R:] OK

[2020-08-11 22:25:15:194_R:] AT Tx:AT+CGREG?

[2020-08-11 22:25:15:221_R:] +CGREG: 0,1

[2020-08-11 22:25:15:244_R:] OK

[2020-08-11 22:25:15:445_R:] AT Tx:AT^SMONI

[2020-08-11 22:25:15:485_R:] ^SMONI: 2G,62,-83,404,22,ED1B,4E3F,--,--,0,0,-,28,0,0,-92,6,A_HR

[2020-08-11 22:25:15:508_R:] OK

[2020-08-11 22:25:15:545_R:] AT Tx:AT+CSQ

[2020-08-11 22:25:15:619_R:] +CSQ: 15,0

[2020-08-11 22:25:15:640_R:] OK

[2020-08-11 22:25:16:446_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:16:721_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:16:749_R:] OK

[2020-08-11 22:25:16:768_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:18:800_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:19:079_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:19:103_R:] OK

[2020-08-11 22:25:19:127_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:21:155_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:21:431_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:21:452_R:] OK

[2020-08-11 22:25:21:472_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:23:508_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:23:790_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:23:814_R:] OK

[2020-08-11 22:25:23:834_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:25:663_R:] AT Tx:AT+CREG?

[2020-08-11 22:25:25:692_R:] +CREG: 0,1

[2020-08-11 22:25:25:714_R:] OK

[2020-08-11 22:25:25:913_R:] AT Tx:AT+CGREG?

[2020-08-11 22:25:25:941_R:] +CGREG: 0,1

[2020-08-11 22:25:25:963_R:] OK

[2020-08-11 22:25:26:164_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:26:444_R:] +CLCC: 1,0,0,0,0,"87********",129

[2020-08-11 22:25:26:466_R:] OK

[2020-08-11 22:25:26:487_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:26:518_R:] AT Tx:AT^SMONI

[2020-08-11 22:25:26:587_R:] ^SMONI: 2G,62,-84,404,22,ED1B,4E3F,--,--,0,0,-,28,0,0,-86,5,A_HR

[2020-08-11 22:25:26:611_R:] OK

[2020-08-11 22:25:26:634_R:] AT Tx:AT+CSQ

[2020-08-11 22:25:26:720_R:] +CSQ: 15,0

[2020-08-11 22:25:26:749_R:] OK

[2020-08-11 22:25:28:821_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:29:098_R:] +CLCC: 1,0,0,0,0,"8793747543",129

[2020-08-11 22:25:29:121_R:] OK

[2020-08-11 22:25:29:142_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:31:174_R:] AT Tx:AT+CLCC

[2020-08-11 22:25:31:453_R:] +CLCC: 1,0,0,0,0,"8793747543",129

[2020-08-11 22:25:31:476_R:] OK

[2020-08-11 22:25:31:496_R:] CHECK CALL STATUS : CALL_ACTIVE

[2020-08-11 22:25:32:208_R:] {[EVENT]:INPUT4=1!}

[2020-08-11 22:25:32:238_R:] AT Tx:ATH

[2020-08-11 22:25:32:285_R:] OK

//------- Voice call Session END, After this no ther AT Command receive any Responce

[2020-08-11 22:25:50:438_R:] AT Tx:AT+CREG?

[2020-08-11 22:25:51:689_R:] AT Tx:AT+CGREG?

[2020-08-11 22:25:52:941_R:] AT Tx:AT^SMONI

[2020-08-11 22:25:55:043_R:] AT Tx:AT+CSQ

[2020-08-11 22:26:05:182_R:] AT Tx:AT+CREG?

[2020-08-11 22:26:06:332_R:] AT Tx:AT+CGREG?

[2020-08-11 22:26:10:535_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:26:15:190_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:26:15:892_R:] AT Tx:AT^SMONI

[2020-08-11 22:26:17:993_R:] AT Tx:AT+CSQ

[2020-08-11 22:26:22:145_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:26:22:848_R:] AT Tx:AT+CREG?

[2020-08-11 22:26:23:999_R:] AT Tx:AT+CGREG?

[2020-08-11 22:26:28:203_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:26:29:155_R:] AT Tx:AT^SMONI

[2020-08-11 22:26:31:256_R:] AT Tx:AT+CSQ

[2020-08-11 22:26:35:408_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:26:36:111_R:] AT Tx:AT+CREG?

[2020-08-11 22:26:37:263_R:] AT Tx:AT+CGREG?

[2020-08-11 22:26:41:465_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:26:42:419_R:] AT Tx:AT^SMONI

[2020-08-11 22:26:44:519_R:] AT Tx:AT+CSQ

[2020-08-11 22:26:48:672_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:26:49:372_R:] AT Tx:AT+CREG?

[2020-08-11 22:26:50:524_R:] AT Tx:AT+CGREG?

[2020-08-11 22:26:54:729_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:26:55:680_R:] AT Tx:AT^SMONI

[2020-08-11 22:26:57:782_R:] AT Tx:AT+CSQ

[2020-08-11 22:27:01:934_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:27:02:635_R:] AT Tx:AT+CREG?

[2020-08-11 22:27:03:787_R:] AT Tx:AT+CGREG?

[2020-08-11 22:27:07:990_R:] AT Tx:AT^SICS=0,CONTYPE,GPRS0

[2020-08-11 22:27:08:943_R:] AT Tx:AT^SMONI

[2020-08-11 22:27:11:044_R:] AT Tx:AT+CSQ

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Bartłomiej Gema...

Aug 25 2020 - 4:51pm

Hello,

I can see that there was no answer for a long time. Does this problem still exist? As I see the AT interface seems to hang when the voice call is terminated by the module. In your observation 1 the voice call seem to be the only activity.

How frequently does this problem happen? Are there any other prerequisites to reproduce this?

Regards,

Bartłomiej

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sumo

Aug 27 2020 - 12:37pm

Hello Bartłomiej,

Yes, this problem still exists.

To reproduce this problem will suggest, with the same BGS5 module and with the same firmware version. try the below steps.

Steps:

1. GSM Power ON, GPRS packet transmission & reception "Active".

2. GPRS Socket closed through "AT^SISC=0".

3. Voice call Session started and call status is active.

4. call HAng up through "ATH" and will receive the response "OK"

5. After this all other AT Command not received any expected or unexpected responses.

If we follow the same sequence, out of 10 we can say 8 or 9 ***** will get this issue.

Thanks,

SUMO

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Bartłomiej Gema...

Aug 27 2020 - 4:44pm

Hello,

I tried to follow your description - socket connection over AT commands and data exchange with some echo server and after that a voice call. I tried on USB interface many ***** but wasn't able to reproduce the problem. Do you have more than one module of this type to compare? Can you verify the hardware variant printed on the module (for instance A200, B100)? Please also check the JRC verswion (AT^SJAM=4). Have you checked if the module does not reply on both interfaces - USB and RS232? What hardware setup do you have? Maybe it is related to a power supply. Please also test with the different operator. Is the data connection before voice call critical for the reproduction?

Regards,

Bartłomiej

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sumo

Aug 28 2020 - 2:46pm

Hello Bartlomiej,

We are using RS232 interface ( ASC0 ) and the module we are using is BGS5 S30960-S3300-B100-1.

Have you checked if the module does not reply on both interfaces - USB and RS232?

>> Yes, Our observation is like when we are not receiving any responses from RS232 at that time we checked USB interface by sending just simple at commands "AT" at that time we received "OK" Response.

What hardware setup do you have? Maybe it is related to a power supply.

>> we have customized hardware setup which is specifically used for a vehicle tracking device, This hardware we are using for many years and we don't think its related power supply.

Please also test with a different operator.

>> As we are using ESIM ( operator: Vodaphone ) we cant check with different operators.

Is the data connection before voice call critical for reproduction?

>> Before voice call, GPRS data transmission is working as expected and before to start voice call we are closing the socket.

When we are not getting any responses from the interface , Do you know any commands or methods by which we can restart gsm communication (without doing module reset)? or do you think BGS5 module going in different modes where it is not able to respond to something like?

Thanks & Regards,

SUMO

Regards,

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sumo

Aug 28 2020 - 3:22pm

Also regarding AT^SJAM=4 and 5 captured below response, Please have look.

AT^SJAM=4

^SJAM: "a:/JRC-1.50.4.jad","Java Remote Control MIDlet Suite","Cinterion","1.50.4","1"

AT^SJAM=5

^SJAM: "a:/JRC-1.50.4.jad","Java Remote Control MIDlet Suite","Cinterion","1.50.4","1"

Regards,

SUMO

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Bartłomiej Gema...

Aug 28 2020 - 4:44pm

Hello,

So if you can communicate on USB (you might also try soemthing else than AT like ATI1 for instance to be sure that everything still works) the whole module does not hang or anything like that. It looks like only ASC0 is not accessible.

So it may be somenthing related to RS232 interface or connected hardware. Do you use power saving on RS232 interfaces - please check AT^SPOW? output. Which lines are connected? Is hardware flow control used? Please also check AT^SCFG? and AT&V outputs. Maybe some RS232 tracer would bring something new here - incorrect line states etc.

I have the same JRC version but a different hardware variant. I can't be sure at the moment if this can have any influence.

I tried this scenario on ASC0 but it also works each time for me.

Do you have more than one device with this problem? Maybe it is only a single device not working correctly.

Regards,

Bartłomiej

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sumo

Sep 7 2020 - 3:25pm

Hello,

We are not using a hardware flow control setting at the TE side as our hardware design does not support RTS/CTS interface.

can you confirm without hardware flow control we are getting the same results?

Also please suggests any workaround methods to bypass this issue. ( Right now, We are resetting gsm module) but this method adding latency.

Thanks

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During active call session when hanging up the active call though AT Command "ATH". We are getting the response "Ok" but after that, other AT Commands not get any responses. Like AT+CSQ, AT+CREG, AT+SMONI, or for simple "AT" COmm | Telit Cinterion IoT Developer Community

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