diff --git a/Inc/AtGsmQuerySignalQuality.h b/Inc/AtGsmQuerySignalQuality.h
new file mode 100644
index 0000000..9427917
--- /dev/null
+++ b/Inc/AtGsmQuerySignalQuality.h
@@ -0,0 +1,15 @@
+//
+// Created by cfif on 07.06.2024.
+//
+
+#ifndef SMART_COMPONENTS_ATGSMQUERYSIGNALQUALITY_H
+#define SMART_COMPONENTS_ATGSMQUERYSIGNALQUALITY_H
+
+#include "AtCmdBase.h"
+
+AtCommandResult AtGsm_QuerySignalQuality(
+        tAtCmd *env,
+        uint8_t *rssi
+);
+
+#endif //SMART_COMPONENTS_ATGSMQUERYSIGNALQUALITY_H
diff --git a/Src/AtGsmQuerySignalQuality.c b/Src/AtGsmQuerySignalQuality.c
new file mode 100644
index 0000000..780c474
--- /dev/null
+++ b/Src/AtGsmQuerySignalQuality.c
@@ -0,0 +1,61 @@
+//
+// Created by cfif on 07.06.2024.
+//
+#include <SystemDelayInterface.h>
+#include "AtCmdCommonProtected.h"
+#include "AsciiStringParsingUtils.h"
+#include "AtGsmQuerySignalQuality.h"
+#include "stdlib.h"
+
+AtCommandResult AtGsm_QuerySignalQuality(
+        tAtCmd *env,
+        uint8_t *rssi
+) {
+
+    AtCmdPrepare(env);
+    AtCmdRxClear(env);
+    AtCmdSendStatic(env, "AT+CSQ\r\n");
+
+    uint32_t timeout = 1000;
+    uint32_t endMs = SystemGetMs() + timeout;
+    uint32_t leftMs = timeout;
+
+    while ((AtCmdReceiveNextLine(env, leftMs) == AT_OK) && (SystemGetMs() < endMs)) {
+        leftMs = endMs - SystemGetMs();
+
+        if (AtCmdRxBeginWithStatic(env, "AT+CSQ")) {
+            AtCmdRxClear(env);
+            continue;
+
+        } else if (AtCmdRxBeginWithStatic(env, "ERROR")) {
+            AtCmdRxClear(env);
+            return AT_ERROR;
+
+        } else if (AtCmdRxBeginWithStatic(env, "+CSQ: ")) {
+
+            char *front;
+            char *div = env->rxBuffer.data + sizeof("+CSQ:") - 1;
+            char *end = div + env->rxBuffer.len;
+
+            uint8_t Ber = 0;
+            uint8_t Rssi = 0;
+            if (iAsciiStringMoveToNextParsingBlock(&front, &div, end, ',')) {
+                Rssi = atoi(front);
+                *(uint8_t *) rssi = Rssi;
+            }
+
+            if (iAsciiStringMoveToNextParsingBlock(&front, &div, end, ',')) {
+                Ber = atoi(front);
+            }
+
+            AtCmdRxClear(env);
+            return AT_OK;
+        } else {
+            AtCmdProcessUnresolvedLine(env);
+            AtCmdRxClear(env);
+            continue;
+        }
+    }
+
+    return AT_ERROR;
+}
\ No newline at end of file