cellular.call answer not implemented

[ahmadmicro]

There is no way to answer an incoming call.

[pulkin]

I think it is easy enough to be implemented by someone else.

1. Go to micropython docs and familiarize yourself with module layout.
2. Go to modcellular.c and look at, for example, modcellular_get_imsi. Something similar has to be implemented here.

micropython/ports/gprs_a9/modcellular.c

Lines 834 to 850 in 892cf52

	STATIC mp_obj_t modcellular_get_imsi(void) {
	// ========================================
	// Retrieves IMSI number.
	// Returns:
	// IMSI number as a string.
	// ========================================
	char imsi[21];
	memset(imsi, 0, sizeof(imsi));
	if (SIM_GetIMSI((uint8_t*)imsi))
	return mp_obj_new_str(imsi, strlen(imsi));
	else {
	mp_raise_CellularError("No IMSI data available");
	return mp_const_none;
	}
	}
	STATIC MP_DEFINE_CONST_FUN_OBJ_0(modcellular_get_imsi_obj, modcellular_get_imsi);

3. Copy-paste the function. Remove the body and rename all modcellular_get_imsi into modcellular_answer (I suggest to name this function cellular.answer).
4. In the function body just run Call_Answer as described in API docs.
5. Raise a CellularError if it returns False. Otherwise just return None.
6. Register the function as a part of cellular module by adding a new line in the dict in the basement.

micropython/ports/gprs_a9/modcellular.c

Lines 1211 to 1255 in 892cf52

	STATIC const mp_map_elem_t mp_module_cellular_globals_table[] = {
	{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_cellular) },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_CellularError), (mp_obj_t)MP_ROM_PTR(&mp_type_CellularError) },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_SMS), (mp_obj_t)MP_ROM_PTR(&modcellular_sms_type) },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_get_imei), (mp_obj_t)&modcellular_get_imei_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_get_signal_quality), (mp_obj_t)&modcellular_get_signal_quality_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_network_status_changed), (mp_obj_t)&modcellular_network_status_changed_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_poll_network_exception), (mp_obj_t)&modcellular_poll_network_exception_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_get_network_status), (mp_obj_t)&modcellular_get_network_status_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_is_sim_present), (mp_obj_t)&modcellular_is_sim_present_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_is_network_registered), (mp_obj_t)&modcellular_is_network_registered_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_is_roaming), (mp_obj_t)&modcellular_is_roaming_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_get_iccid), (mp_obj_t)&modcellular_get_iccid_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_get_imsi), (mp_obj_t)&modcellular_get_imsi_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_flight_mode), (mp_obj_t)&modcellular_flight_mode_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_set_bands), (mp_obj_t)&modcellular_set_bands_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_gprs), (mp_obj_t)&modcellular_gprs_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_scan), (mp_obj_t)&modcellular_scan_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_register), (mp_obj_t)&modcellular_register_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_call), (mp_obj_t)&modcellular_call_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_dial), (mp_obj_t)&modcellular_dial_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_stations), (mp_obj_t)&modcellular_stations_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_agps_station_data), (mp_obj_t)&modcellular_agps_station_data_obj },
	{ MP_OBJ_NEW_QSTR(MP_QSTR_reset), (mp_obj_t)&modcellular_reset_obj },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_FREQ_BAND_GSM_900P), MP_ROM_INT(NETWORK_FREQ_BAND_GSM_900P) },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_FREQ_BAND_GSM_900E), MP_ROM_INT(NETWORK_FREQ_BAND_GSM_900E) },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_FREQ_BAND_GSM_850), MP_ROM_INT(NETWORK_FREQ_BAND_GSM_850) },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_FREQ_BAND_DCS_1800), MP_ROM_INT(NETWORK_FREQ_BAND_DCS_1800) },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_FREQ_BAND_PCS_1900), MP_ROM_INT(NETWORK_FREQ_BAND_PCS_1900) },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_FREQ_BANDS_ALL), MP_ROM_INT(BANDS_ALL) },
	{ MP_ROM_QSTR(MP_QSTR_OPERATOR_STATUS_UNKNOWN), MP_ROM_INT(0) },
	{ MP_ROM_QSTR(MP_QSTR_OPERATOR_STATUS_AVAILABLE), MP_ROM_INT(1) },
	{ MP_ROM_QSTR(MP_QSTR_OPERATOR_STATUS_CURRENT), MP_ROM_INT(2) },
	{ MP_ROM_QSTR(MP_QSTR_OPERATOR_STATUS_DISABLED), MP_ROM_INT(3) },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_MODE_MANUAL), MP_ROM_INT(NETWORK_REGISTER_MODE_MANUAL) },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_MODE_AUTO), MP_ROM_INT(NETWORK_REGISTER_MODE_AUTO) },
	{ MP_ROM_QSTR(MP_QSTR_NETWORK_MODE_MANUAL_AUTO), MP_ROM_INT(NETWORK_REGISTER_MODE_MANUAL_AUTO) },
	};

7. Build, flash and test whether it works on your module.
8. Add function description to port README.md.

Total changes are around 10 lines in a single file.

[ahmadmicro]

Looks like something I should be able to do. Thanks.

[drhisham343]

Sorry for being a beginner. How can I build flash after making the nessesary changes using microsoft windows. I noticed that the Makefile having some refferance to csdtk42-linux. I tried to use make command on cmd but it didn`t work. can you help?

[camp-easy]

Sorry for being a beginner. How can I build flash after making the nessesary changes using microsoft windows. I noticed that the Makefile having some refferance to csdtk42-linux. I tried to use make command on cmd but it didn`t work. can you help?

just try with linux bro