diff --git a/app/modules/telefoni/templates/log.html b/app/modules/telefoni/templates/log.html
index 24edc0b..1560638 100644
--- a/app/modules/telefoni/templates/log.html
+++ b/app/modules/telefoni/templates/log.html
@@ -850,6 +850,27 @@ function hasExistingCallRows(tbody) {
     return Boolean(tbody && tbody.querySelector('tr[data-call-id]'));
 }
 
+function cacheInitialSsrRows(tbody) {
+    if (!tbody) return;
+    if (tbody.dataset.initialRowsCached === '1') return;
+    tbody.dataset.initialRowsHtml = tbody.innerHTML;
+    tbody.dataset.initialRowsCached = '1';
+}
+
+function restoreInitialSsrRows(tbody) {
+    if (!tbody) return false;
+    const initialHtml = String(tbody.dataset.initialRowsHtml || '').trim();
+    if (!initialHtml) return false;
+    if (!initialHtml.includes('data-call-id')) return false;
+
+    tbody.innerHTML = initialHtml;
+    tbody.classList.remove('d-none');
+    tbody.style.display = '';
+    tbody.style.visibility = '';
+    tbody.style.opacity = '';
+    return true;
+}
+
 function hasActiveCallFilters() {
     const userId = document.getElementById('filterUser')?.value;
     const from = document.getElementById('filterFrom')?.value;
@@ -862,6 +883,7 @@ async function loadCalls(options = {}) {
     const preserveOnEmpty = Boolean(options.preserveOnEmpty);
     const skipLoadingState = Boolean(options.skipLoadingState);
     const tbody = document.getElementById('telefoniRows');
+    cacheInitialSsrRows(tbody);
     const hadRowsBeforeLoad = hasExistingCallRows(tbody);
     const noActiveFilters = !hasActiveCallFilters();
 
@@ -888,6 +910,10 @@ async function loadCalls(options = {}) {
                 console.warn('Telefoni: bevarer SSR-rækker efter tom/fejlende auto-refresh');
                 return;
             }
+            if (preserveOnEmpty && noActiveFilters && restoreInitialSsrRows(tbody)) {
+                console.warn('Telefoni: gendannede SSR-rækker efter API-fejl under auto-refresh');
+                return;
+            }
             tbody.innerHTML = `<tr><td colspan="7" class="text-danger small">Fejl: ${escapeHtml(t)}</td></tr>`;
             return;
         }
@@ -899,6 +925,10 @@ async function loadCalls(options = {}) {
                 console.warn('Telefoni: API returnerede 0 rækker, bevarer eksisterende SSR-visning');
                 return;
             }
+            if (preserveOnEmpty && noActiveFilters && restoreInitialSsrRows(tbody)) {
+                console.warn('Telefoni: gendannede SSR-rækker efter tom API-respons');
+                return;
+            }
             tbody.innerHTML = '<tr><td colspan="7" class="text-muted small">Ingen opkald fundet</td></tr>';
             return;
         }
@@ -972,6 +1002,10 @@ async function loadCalls(options = {}) {
             console.warn('Telefoni: bevarer SSR-rækker efter exception i auto-refresh');
             return;
         }
+        if (preserveOnEmpty && noActiveFilters && restoreInitialSsrRows(tbody)) {
+            console.warn('Telefoni: gendannede SSR-rækker efter exception i auto-refresh');
+            return;
+        }
         tbody.innerHTML = '<tr><td colspan="7" class="text-danger small">Kunne ikke hente opkald</td></tr>';
     }
 }
@@ -1030,6 +1064,7 @@ async function unlinkCase(callId) {
 }
 
 document.addEventListener('DOMContentLoaded', async () => {
+    cacheInitialSsrRows(document.getElementById('telefoniRows'));
     initLinkContactModalEvents();
     initLinkSagModalEvents();
     const userFilter = document.getElementById('filterUser');