Huawei E156 - Not receiving calls

Hello.

I have a 3G modem model: Huawei E156 that I would like to use to detect
received calls.
I don't want to answer the call, just identify it and hung up. Using the
GSM_SetIncomingCallCallback and a respective callback.
I can get information as model, Manufacturer, signal strength and even
receive SMS messages, but when I try to call it, the operator didn't let
the call even finish saying that the number is not available.

When using a mobile phone (Motorola EX108) as the modem everything works
fine.

How do I know for sure if the problem is the support of the device for
receiving calls or is something I'm not doing right, or maybe any extra
configuration?
I appreciate any help.

Thanks in advance.

When running a simple C code to get Manufacturer and model with debug
enabled I got the following output:

[Gammu            - 1.37.3]
[Connection       - "at"]
[Connection index - 0]
[Model type       - ""]
[Device           - "/dev/ttyUSB0"]
Serial device: DTR is up, RTS is up, CAR is up, CTS is up
Setting speed to 115200
[Module           - "auto"]
Escaping SMS mode
SENDING frame type 0x00/length 0x02/2
1B |0D
..
Sending simple AT command to wake up some devices
SENDING frame type 0x00/length 0x03/3
41A|54T|0D
AT.
1 "AT"
2 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x09/9
41A|54T|0D |0D |0A |4FO|4BK|0D |0A
AT...OK..
Enabling echo
SENDING frame type 0x00/length 0x05/5
41A|54T|45E|311|0D
ATE1.
1 "ATE1"
2 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x0B/11
41A|54T|45E|311|0D |0D |0A |4FO|4BK|0D |0A
ATE1...OK..
Trying Motorola mode switch
SENDING frame type 0x00/length 0x0A/10
41A|54T|2B+|4DM|4FO|44D|45E|3D=|322|0D
AT+MODE=2.
1 "AT+MODE=2"
2 "ERROR"
Checking line: ERROR
AT reply state: 3
RECEIVED frame type 0x00/length 0x13/19
41A|54T|2B+|4DM|4FO|44D|45E|3D=|322|0D |0D |0A |45E|52R|52R|4FO
AT+MODE=2...ERRO
52R|0D |0A
R..
Seems not to be supported
Enabling CME errors
SENDING frame type 0x00/length 0x0A/10
41A|54T|2B+|43C|4DM|45E|45E|3D=|311|0D
AT+CMEE=1.
1 "AT+CMEE=1"
2 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x10/16
41A|54T|2B+|43C|4DM|45E|45E|3D=|311|0D |0D |0A |4FO|4BK|0D |0A
AT+CMEE=1...OK..
SENDING frame type 0x00/length 0x09/9
41A|54T|2B+|43C|53S|43C|53S|3F?|0D
AT+CSCS?.
1 "AT+CSCS?"
2 "+CSCS: "IRA""
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x1F/31
41A|54T|2B+|43C|53S|43C|53S|3F?|0D |0D |0A |2B+|43C|53S|43C|53S
AT+CSCS?...+CSCS
3A:|20 |22"|49I|52R|41A|22"|0D |0A |0D |0A |4FO|4BK|0D |0A      :
"IRA"....OK..
SENDING frame type 0x00/length 0x0A/10
41A|54T|2B+|43C|53S|43C|53S|3D=|3F?|0D
AT+CSCS=?.
1 "AT+CSCS=?"
2 "+CSCS: ("IRA","GSM","UCS2")"
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x2F/47
41A|54T|2B+|43C|53S|43C|53S|3D=|3F?|0D |0D |0A |2B+|43C|53S|43C
AT+CSCS=?...+CSC
53S|3A:|20 |28(|22"|49I|52R|41A|22"|2C,|22"|47G|53S|4DM|22"|2C, S:
("IRA","GSM",
22"|55U|43C|53S|322|22"|29)|0D |0A |0D |0A |4FO|4BK|0D |0A
"UCS2")....OK..
Chosen GSM as normal charset
Chosen UCS2 as unicode charset
SENDING frame type 0x00/length 0x0E/14
41A|54T|2B+|43C|53S|43C|53S|3D=|22"|47G|53S|4DM|22"|0D
AT+CSCS="GSM".
1 "AT+CSCS="GSM""
2 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x14/20
41A|54T|2B+|43C|53S|43C|53S|3D=|22"|47G|53S|4DM|22"|0D |0D |0A
AT+CSCS="GSM"...
4FO|4BK|0D |0A
OK..
SENDING frame type 0x00/length 0x09/9
41A|54T|2B+|43C|53S|43C|53S|3F?|0D
AT+CSCS?.
1 "AT+CSCS?"
2 "+CSCS: "GSM""
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x1F/31
41A|54T|2B+|43C|53S|43C|53S|3F?|0D |0D |0A |2B+|43C|53S|43C|53S
AT+CSCS?...+CSCS
3A:|20 |22"|47G|53S|4DM|22"|0D |0A |0D |0A |4FO|4BK|0D |0A      :
"GSM"....OK..
Getting model
SENDING frame type 0x00/length 0x08/8
41A|54T|2B+|43C|47G|4DM|4DM|0D
AT+CGMM.
1 "AT+CGMM"
2 "E156"
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x16/22
41A|54T|2B+|43C|47G|4DM|4DM|0D |0D |0A |45E|311|355|366|0D |0A
AT+CGMM...E156..
0D |0A |4FO|4BK|0D |0A
..OK..
Unknown model, but it should still work
[Model name: `E156']
[Model data: `']
[Model data: `unknown']
[Connected model  - "E156"]
SENDING frame type 0x00/length 0x08/8
41A|54T|2B+|43C|47G|4DM|49I|0D
AT+CGMI.
1 "AT+CGMI"
2 "huawei"
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x18/24
41A|54T|2B+|43C|47G|4DM|49I|0D |0D |0A |68h|75u|61a|77w|65e|69i
AT+CGMI...huawei
0D |0A |0D |0A |4FO|4BK|0D |0A
....OK..
Manufacturer info received
[Manufacturer: Huawei]
Checking for OBEX support
SENDING frame type 0x00/length 0x0B/11
41A|54T|2B+|43C|50P|52R|4FO|54T|3D=|3F?|0D
AT+CPROT=?.
1 "AT+CPROT=?"
2 "ERROR"
Checking line: ERROR
AT reply state: 3
RECEIVED frame type 0x00/length 0x14/20
41A|54T|2B+|43C|50P|52R|4FO|54T|3D=|3F?|0D |0D |0A |45E|52R|52R
AT+CPROT=?...ERR
4FO|52R|0D |0A
OR..
Checking for SYNCML/OBEX support
SENDING frame type 0x00/length 0x0C/12
41A|54T|2B+|53S|59Y|4EN|43C|4DM|4CL|3D=|3F?|0D
AT+SYNCML=?.
1 "AT+SYNCML=?"
2 "ERROR"
Checking line: ERROR
AT reply state: 3
RECEIVED frame type 0x00/length 0x15/21
41A|54T|2B+|53S|59Y|4EN|43C|4DM|4CL|3D=|3F?|0D |0D |0A |45E|52R
AT+SYNCML=?...ER
52R|4FO|52R|0D |0A
ROR..
SENDING frame type 0x00/length 0x0D/13
41A|54T|24$|54T|53S|53S|50P|43C|53S|57W|3D=|3F?|0D
AT$TSSPCSW=?.
1 "AT$TSSPCSW=?"
2 "ERROR"
Checking line: ERROR
AT reply state: 3
RECEIVED frame type 0x00/length 0x16/22
41A|54T|24$|54T|53S|53S|50P|43C|53S|57W|3D=|3F?|0D |0D |0A |45E
AT$TSSPCSW=?...E
52R|52R|4FO|52R|0D |0A
RROR..
[Module           -
"A2D|iPAQ|at|M20|S25|MC35|TC35|C35i|S65|S300|5110|5130|5190|5210|6110|6130|6150|6190|6210|6250|6310|6310i|6510|7110|8210|8250|8290|8310|8390|8850|8855|8890|8910|9110|9210"]
Escaping SMS mode
SENDING frame type 0x00/length 0x02/2
1B |0D
..
Sending simple AT command to wake up some devices
SENDING frame type 0x00/length 0x03/3
41A|54T|0D
AT.
1 "AT"
2 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x09/9
41A|54T|0D |0D |0A |4FO|4BK|0D |0A
AT...OK..
Enabling echo
SENDING frame type 0x00/length 0x05/5
41A|54T|45E|311|0D
ATE1.
1 "ATE1"
2 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x0B/11
41A|54T|45E|311|0D |0D |0A |4FO|4BK|0D |0A
ATE1...OK..
Trying Motorola mode switch
SENDING frame type 0x00/length 0x0A/10
41A|54T|2B+|4DM|4FO|44D|45E|3D=|322|0D
AT+MODE=2.
1 "AT+MODE=2"
2 "ERROR"
Checking line: ERROR
AT reply state: 3
RECEIVED frame type 0x00/length 0x13/19
41A|54T|2B+|4DM|4FO|44D|45E|3D=|322|0D |0D |0A |45E|52R|52R|4FO
AT+MODE=2...ERRO
52R|0D |0A
R..
Seems not to be supported
Enabling CME errors
SENDING frame type 0x00/length 0x0A/10
41A|54T|2B+|43C|4DM|45E|45E|3D=|311|0D
AT+CMEE=1.
1 "AT+CMEE=1"
2 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x10/16
41A|54T|2B+|43C|4DM|45E|45E|3D=|311|0D |0D |0A |4FO|4BK|0D |0A
AT+CMEE=1...OK..
SENDING frame type 0x00/length 0x09/9
41A|54T|2B+|43C|53S|43C|53S|3F?|0D
AT+CSCS?.
1 "AT+CSCS?"
2 "+CSCS: "GSM""
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x1F/31
41A|54T|2B+|43C|53S|43C|53S|3F?|0D |0D |0A |2B+|43C|53S|43C|53S
AT+CSCS?...+CSCS
3A:|20 |22"|47G|53S|4DM|22"|0D |0A |0D |0A |4FO|4BK|0D |0A      :
"GSM"....OK..
SENDING frame type 0x00/length 0x0A/10
41A|54T|2B+|43C|53S|43C|53S|3D=|3F?|0D
AT+CSCS=?.
1 "AT+CSCS=?"
2 "+CSCS: ("IRA","GSM","UCS2")"
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x2F/47
41A|54T|2B+|43C|53S|43C|53S|3D=|3F?|0D |0D |0A |2B+|43C|53S|43C
AT+CSCS=?...+CSC
53S|3A:|20 |28(|22"|49I|52R|41A|22"|2C,|22"|47G|53S|4DM|22"|2C, S:
("IRA","GSM",
22"|55U|43C|53S|322|22"|29)|0D |0A |0D |0A |4FO|4BK|0D |0A
"UCS2")....OK..
Chosen GSM as normal charset
Chosen UCS2 as unicode charset
SENDING frame type 0x00/length 0x08/8
41A|54T|2B+|43C|47G|4DM|49I|0D
AT+CGMI.
1 "AT+CGMI"
2 "huawei"
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x18/24
41A|54T|2B+|43C|47G|4DM|49I|0D |0D |0A |68h|75u|61a|77w|65e|69i
AT+CGMI...huawei
0D |0A |0D |0A |4FO|4BK|0D |0A
....OK..
Manufacturer info received
[Manufacturer: Huawei]
Checking for OBEX support
SENDING frame type 0x00/length 0x0B/11
41A|54T|2B+|43C|50P|52R|4FO|54T|3D=|3F?|0D
AT+CPROT=?.
1 "AT+CPROT=?"
2 "ERROR"
Checking line: ERROR
AT reply state: 3
RECEIVED frame type 0x00/length 0x14/20
41A|54T|2B+|43C|50P|52R|4FO|54T|3D=|3F?|0D |0D |0A |45E|52R|52R
AT+CPROT=?...ERR
4FO|52R|0D |0A
OR..
Checking for SYNCML/OBEX support
SENDING frame type 0x00/length 0x0C/12
41A|54T|2B+|53S|59Y|4EN|43C|4DM|4CL|3D=|3F?|0D
AT+SYNCML=?.
1 "AT+SYNCML=?"
2 "ERROR"
Checking line: ERROR
AT reply state: 3
RECEIVED frame type 0x00/length 0x15/21
41A|54T|2B+|53S|59Y|4EN|43C|4DM|4CL|3D=|3F?|0D |0D |0A |45E|52R
AT+SYNCML=?...ER
52R|4FO|52R|0D |0A
ROR..
SENDING frame type 0x00/length 0x0D/13
41A|54T|24$|54T|53S|53S|50P|43C|53S|57W|3D=|3F?|0D
AT$TSSPCSW=?.
1 "AT$TSSPCSW=?"
2 "ERROR"
Checking line: ERROR
AT reply state: 3
RECEIVED frame type 0x00/length 0x16/22
41A|54T|24$|54T|53S|53S|50P|43C|53S|57W|3D=|3F?|0D |0D |0A |45E
AT$TSSPCSW=?...E
52R|52R|4FO|52R|0D |0A
RROR..
Getting firmware versions
SENDING frame type 0x00/length 0x08/8
41A|54T|2B+|43C|47G|4DM|52R|0D
AT+CGMR.
1 "AT+CGMR"
2 "11.604.09.01.149"
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x22/34
41A|54T|2B+|43C|47G|4DM|52R|0D |0D |0A |311|311|2E.|366|300|344
AT+CGMR...11.604
2E.|300|399|2E.|300|311|2E.|311|344|399|0D |0A |0D |0A |4FO|4BK
.09.01.149....OK
0D |0A
..
Received firmware version: "11.604.09.01.149"
Number version is "11,604090"
[Firmware version - "11.604.09.01.149"]
[Connected]
Entering GSM_GetManufacturer
SENDING frame type 0x00/length 0x08/8
41A|54T|2B+|43C|47G|4DM|49I|0D
AT+CGMI.
1 "AT+CGMI"
2 "huawei"
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x18/24
41A|54T|2B+|43C|47G|4DM|49I|0D |0D |0A |68h|75u|61a|77w|65e|69i
AT+CGMI...huawei
0D |0A |0D |0A |4FO|4BK|0D |0A
....OK..
Manufacturer info received
[Manufacturer: Huawei]
Leaving GSM_GetManufacturer
Manufacturer      : Huawei
Entering GSM_GetModel
Getting model
SENDING frame type 0x00/length 0x08/8
41A|54T|2B+|43C|47G|4DM|4DM|0D
AT+CGMM.
1 "AT+CGMM"
2 "E156"
3 "OK"
Checking line: OK
AT reply state: 1
RECEIVED frame type 0x00/length 0x16/22
41A|54T|2B+|43C|47G|4DM|4DM|0D |0D |0A |45E|311|355|366|0D |0A
AT+CGMM...E156..
0D |0A |4FO|4BK|0D |0A
..OK..
Unknown model, but it should still work
[Model name: `E156']
[Model data: `']
[Model data: `unknown']
[Connected model  - "E156"]
Leaving GSM_GetModel
Model             : unknown (E156)
[Terminating]
[Closing]

------------------------------------------------------------------------------
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