diff --git a/entity/Employee_entity/grantDeleteProcess.js b/entity/Employee_entity/grantDeleteProcess.js
index e1d6c3c3c66520301af7fcc8215b6c040af0b123..d817b2a09effbf52d467ced477cffc4f62d4e29d 100644
--- a/entity/Employee_entity/grantDeleteProcess.js
+++ b/entity/Employee_entity/grantDeleteProcess.js
@@ -2,5 +2,16 @@ import("Employee_lib");
 import("Document_lib");
 import("system.vars");
 import("system.result");
-// TODO: Commented because of performance problems: in Filter view this Process is called for every row. Waiting for bugfix
-//result.string(!DocumentUtil.hasDocuments("EMPLOYEE", null, EmployeeUtils.sliceUserId(vars.get("$field.UID"))));
\ No newline at end of file
+
+var res = false;
+
+//the current user should not delete himself
+if (EmployeeUtils.getCurrentUserName() != vars.get("$field.TITLE") 
+    && !EmployeeUtils.hasRelations(vars.get("$field.CONTACT_ID")) 
+    && !DocumentUtil.hasDocuments("EMPLOYEE", null, EmployeeUtils.sliceUserId(vars.get("$field.UID")))
+   )
+{
+    res = true;
+}
+
+result.string(res);
\ No newline at end of file
diff --git a/entity/Employee_entity/recordcontainers/jdito/onDelete.js b/entity/Employee_entity/recordcontainers/jdito/onDelete.js
index 212b6d23132d934d2e7169624a2607b58d99a2e0..ab759edc01f99d49bbc901935e5d0805b54cfe10 100644
--- a/entity/Employee_entity/recordcontainers/jdito/onDelete.js
+++ b/entity/Employee_entity/recordcontainers/jdito/onDelete.js
@@ -3,6 +3,6 @@ import("system.vars");
 import("system.tools");
 import("Employee_lib");
 
-//TODO: the current user should not delete himself, put this condition in grantDelete when available
+//the current user should not delete himself
 if (EmployeeUtils.getCurrentUserName() != vars.get("$field.TITLE") && !EmployeeUtils.hasRelations(vars.get("$field.CONTACT_ID")))
     tools.deleteUser(vars.get("$field.TITLE"));
\ No newline at end of file
diff --git a/process/IncomingCallExecutor_lib/process.js b/process/IncomingCallExecutor_lib/process.js
index 7348d5e682d51bc1c48a206e105595fc80514d40..307f4e456b1fb0fbb1d493dc15db8b9c86acdce5 100644
--- a/process/IncomingCallExecutor_lib/process.js
+++ b/process/IncomingCallExecutor_lib/process.js
@@ -288,7 +288,7 @@ IncomingCallExecutor._getContactsFromNumber = function(pNumber, pContactIds)
                         .join("ORGANISATION", "ORGANISATION.ORGANISATIONID = CONTACT.ORGANISATION_ID")
                         .leftJoin("PERSON", "CONTACT.PERSON_ID = PERSON.PERSONID")
                         .where("CONTACT.STATUS", $KeywordRegistry.contactStatus$active())
-                        .and("CONTACT.CONTACTID", pContactIds, SqlBuilder.IN())
+                        .and("CONTACT.CONTACTID", contactIds, SqlBuilder.IN())
                         .table();
     
     //map to the result how the entities-methods would return it to have less effort later when the mentioned ticket is done