diff --git a/Inc/AtGsmA76xx.h b/Inc/AtGsmA76xx.h
index c117d79..6c245bb 100644
--- a/Inc/AtGsmA76xx.h
+++ b/Inc/AtGsmA76xx.h
@@ -22,7 +22,7 @@
 
 // IMEI
 AtCommandResult AtGsm_Simcom_A76xx_GET_CGSN(tAtCmd *env, char *acpString, size_t *acpStringLen);
-AtCommandResult AtGsm_Simcom_A76xx_CCID(tAtCmd *env, char *acpString, size_t *acpStringLen);
+AtCommandResult AtGsm_Simcom_A76xx_CCID(tAtCmd *env, char *ssidStr, size_t *ssidStrLen);
 
 
 // конец-------------------------- Служебные ----------------------------------------------------------------------
diff --git a/Src/AtGsmA76xx.c b/Src/AtGsmA76xx.c
index aa92ae7..b00984a 100644
--- a/Src/AtGsmA76xx.c
+++ b/Src/AtGsmA76xx.c
@@ -46,38 +46,31 @@ AtCommandResult AtGsm_Simcom_A76xx_GET_CGSN(tAtCmd *env, char *acpString, size_t
     return AT_TIMEOUT;
 }
 
-AtCommandResult AtGsm_Simcom_A76xx_CCID(tAtCmd *env, char *acpString, size_t *acpStringLen) {
+AtCommandResult AtGsm_Simcom_A76xx_CCID(tAtCmd *env, char *ssidStr, size_t *ssidStrLen) {
     AtCmdPrepare(env);
-
     AtCmdTxClear(env);
-    AtCmdTxAddStatic(env, "AT+CICCID");
-    AtCmdTxSendLn(env);
+    AtCmdSendStatic(env, "AT+CICCID\r\n");
 
-
-    uint32_t timeout = env->stdRxTimeout;
-    uint32_t endMs = SystemGetMs() + timeout;
-    uint32_t leftMs = timeout;
-
-    while ((AtCmdReceiveNextLine(env, leftMs) == AT_OK) && (SystemGetMs() < endMs)) {
-        leftMs = endMs - SystemGetMs();
-
-        if (AtCmdRxBeginWithStatic(env, "ERROR")) {
-            AtCmdRxClear(env);
-            return AT_ERROR;
-
-        } else if (AtCmdRxBeginWithStatic(env, "+CCID: ")) {
-            while (AtCmdReceiveNextLine(env, 1000) == AT_OK) {
-                char *start = env->rxBuffer.data + sizeof("+CCID:");
-                *acpStringLen = env->rxBuffer.len - sizeof("+CCID:") - 2;
-                memcpy(acpString, start, *acpStringLen);
-                AtCmdRxClear(env);
-                return AtCmdOkErrAnswer(env, env->stdRxTimeout);
+    uint32_t endMs = SystemGetMs() + 5000;
+    while (endMs > SystemGetMs()) {
+        if (AtCmdReceiveNextLine(env, 1000) == AT_OK) {
+            if (AtCmdRxBeginWithStatic(env, "+ICCID: ")) {
+                static const uint16_t prefixSize = sizeof("+ICCID: ") - 1;
+                *ssidStrLen = env->rxBuffer.len - (prefixSize + 2);
+                memcpy(ssidStr, env->rxBuffer.data + prefixSize, *ssidStrLen);
+                return AT_OK;
+            }
+
+            if (AtCmdRxBeginWithStatic(env, "ERROR")) {
+                return AT_ERROR;
+            }
+            if (AtCmdRxBeginWithStatic(env, "+CME ERROR: SIM busy")) {
+                AtCmdPrepare(env);
+                AtCmdRxClear(env);
+                continue;
             }
 
-        } else {
             AtCmdProcessUnresolvedLine(env);
-            AtCmdRxClear(env);
-            continue;
         }
     }