move base pack here

Author: xMasterX

LICENSE

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+![Image](pics/dialer.jpg)
+
+[Original Link](https://github.com/litui/dtmf_dolphin)
+
+## DTMF Dolphin
+
+DTMF (Dual-Tone Multi-Frequency) dialer, Bluebox, and Redbox.
+
+Now in a release-ready state for both Dialer, Bluebox, and Redbox (US/UK) functionality!
+
+Please note that using the current tone output method, the 2600 tone is scaled about 33 Hz higher than it should be. This is a limitation of the current sample rate.
+
+### Educational Links:
+
+* http://www.phrack.org/issues/25/7.html#article
+* https://en.wikipedia.org/wiki/Dual-tone_multi-frequency_signaling
+* https://en.wikipedia.org/wiki/Blue_box
+* https://en.wikipedia.org/wiki/Red_box_(phreaking)

README.md

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+App(
+    appid="dtmf_dolphin",
+    name="DTMF Dolphin",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="dtmf_dolphin_app",
+    requires=[
+        "storage",
+        "gui",
+        "dialogs",
+    ],
+    fap_icon="phone.png",
+    stack_size=8 * 1024,
+    order=20,
+    fap_category="Tools",
+    fap_author="@litui & @xMasterX",
+    fap_version="1.0",
+    fap_description="DTMF (Dual-Tone Multi-Frequency) dialer, Bluebox, and Redbox.",
+)

application.fam

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+#include "dtmf_dolphin_i.h"
+
+#include <furi.h>
+#include <furi_hal.h>
+
+static bool dtmf_dolphin_app_custom_event_callback(void* context, uint32_t event) {
+    furi_assert(context);
+    DTMFDolphinApp* app = context;
+    return scene_manager_handle_custom_event(app->scene_manager, event);
+}
+
+static bool dtmf_dolphin_app_back_event_callback(void* context) {
+    furi_assert(context);
+    DTMFDolphinApp* app = context;
+    return scene_manager_handle_back_event(app->scene_manager);
+}
+
+static void dtmf_dolphin_app_tick_event_callback(void* context) {
+    furi_assert(context);
+    DTMFDolphinApp* app = context;
+
+    scene_manager_handle_tick_event(app->scene_manager);
+}
+
+static DTMFDolphinApp* app_alloc() {
+    DTMFDolphinApp* app = malloc(sizeof(DTMFDolphinApp));
+
+    app->gui = furi_record_open(RECORD_GUI);
+    app->view_dispatcher = view_dispatcher_alloc();
+    app->scene_manager = scene_manager_alloc(&dtmf_dolphin_scene_handlers, app);
+    view_dispatcher_enable_queue(app->view_dispatcher);
+    view_dispatcher_set_event_callback_context(app->view_dispatcher, app);
+
+    view_dispatcher_set_custom_event_callback(
+        app->view_dispatcher, dtmf_dolphin_app_custom_event_callback);
+    view_dispatcher_set_navigation_event_callback(
+        app->view_dispatcher, dtmf_dolphin_app_back_event_callback);
+    view_dispatcher_set_tick_event_callback(
+        app->view_dispatcher, dtmf_dolphin_app_tick_event_callback, 100);
+
+    view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);
+
+    app->main_menu_list = variable_item_list_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher,
+        DTMFDolphinViewMainMenu,
+        variable_item_list_get_view(app->main_menu_list));
+
+    app->dtmf_dolphin_dialer = dtmf_dolphin_dialer_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher,
+        DTMFDolphinViewDialer,
+        dtmf_dolphin_dialer_get_view(app->dtmf_dolphin_dialer));
+
+    app->notification = furi_record_open(RECORD_NOTIFICATION);
+    notification_message(app->notification, &sequence_display_backlight_enforce_on);
+
+    scene_manager_next_scene(app->scene_manager, DTMFDolphinSceneStart);
+
+    return app;
+}
+
+static void app_free(DTMFDolphinApp* app) {
+    furi_assert(app);
+    view_dispatcher_remove_view(app->view_dispatcher, DTMFDolphinViewMainMenu);
+    view_dispatcher_remove_view(app->view_dispatcher, DTMFDolphinViewDialer);
+    variable_item_list_free(app->main_menu_list);
+
+    dtmf_dolphin_dialer_free(app->dtmf_dolphin_dialer);
+
+    view_dispatcher_free(app->view_dispatcher);
+    scene_manager_free(app->scene_manager);
+
+    notification_message(app->notification, &sequence_display_backlight_enforce_auto);
+
+    furi_record_close(RECORD_GUI);
+    furi_record_close(RECORD_NOTIFICATION);
+    free(app);
+}
+
+int32_t dtmf_dolphin_app(void* p) {
+    UNUSED(p);
+    DTMFDolphinApp* app = app_alloc();
+
+    view_dispatcher_run(app->view_dispatcher);
+
+    app_free(app);
+    return 0;
+}