diff --git a/config.json b/config.json
index fd0b49c..943971d 100644
--- a/config.json
+++ b/config.json
@@ -1,118 +1,8 @@
 {
-  "agents": [
-    {
-      "id": "agent1",
-      "accessCode": "AGENT001",
-      "name": "Marie DUPONT",
-      "email": "AGENT001@callcenter.fr",
-      "password": "demo123",
-      "centresAssignes": ["centre1", "centre2", "centre3"]
-    },
-    {
-      "id": "agent2",
-      "accessCode": "AGENT002",
-      "name": "Jean MARTIN",
-      "email": "AGENT002@callcenter.fr", 
-      "password": "demo456",
-      "centresAssignes": ["centre2", "centre4", "centre5"]
-    },
-    {
-      "id": "agent3",
-      "accessCode": "AGENT003",
-      "name": "Sophie BERNARD",
-      "email": "AGENT003@callcenter.fr",
-      "password": "demo789",
-      "centresAssignes": ["centre1", "centre3", "centre4", "centre5"]
-    }
-  ],
-  "centres": [
-    {
-      "id": "centre1",
-      "nom": "Centre Cardio Lyon",
-      "url": "https://www.doctolib.fr/centre-de-sante/lyon/centre-de-cardiologie-lyon",
-      "telephone": "+33478901234",
-      "couleur": "#FF6B6B",
-      "credentials": {
-        "username": "agent_cardio",
-        "password": "pass123"
-      }
-    },
-    {
-      "id": "centre2",
-      "nom": "Clinique Saint-Jean",
-      "url": "https://www.doctolib.fr/clinique-privee/lyon/clinique-saint-jean",
-      "telephone": "+33478905678",
-      "couleur": "#4ECDC4",
-      "credentials": {
-        "username": "agent_stjean",
-        "password": "pass456"
-      }
-    },
-    {
-      "id": "centre3",
-      "nom": "Cabinet Dr Martin",
-      "url": "https://www.doctolib.fr/medecin-generaliste/villeurbanne/martin",
-      "telephone": "+33472334455",
-      "couleur": "#45B7D1",
-      "credentials": {
-        "username": "cabinet_martin",
-        "password": "pass789"
-      }
-    },
-    {
-      "id": "centre4",
-      "nom": "Centre Radiologie Villeurbanne",
-      "url": "https://www.doctolib.fr/centre-de-radiologie/villeurbanne/centre-imagerie-medicale",
-      "telephone": "+33472667788",
-      "couleur": "#96CEB4",
-      "credentials": {
-        "username": "radio_vlb",
-        "password": "passabc"
-      }
-    },
-    {
-      "id": "centre5",
-      "nom": "Laboratoire BioLab",
-      "url": "https://www.doctolib.fr/laboratoire/lyon/laboratoire-biolab",
-      "telephone": "+33478112233",
-      "couleur": "#DDA0DD",
-      "credentials": {
-        "username": "lab_bio",
-        "password": "passdef"
-      }
-    }
-  ],
-  "cti": {
-    "simulationMode": true,
-    "webhookUrl": "http://localhost:3000/cti-webhook",
-    "appelSimules": [
-      {
-        "numero": "+33612345678",
-        "nom": "Patient Test 1",
-        "centreId": "centre1"
-      },
-      {
-        "numero": "+33687654321", 
-        "nom": "Patient Test 2",
-        "centreId": "centre2"
-      },
-      {
-        "numero": "+33611223344",
-        "nom": "Patient Test 3",
-        "centreId": "centre3"
-      }
-    ]
-  },
-  "preferences": {
-    "tempsSessionMinutes": 480,
-    "autoConnexion": true,
-    "notificationSonore": true,
-    "affichageCompact": false
-  },
   "signalR": {
+    "enabled": true,
     "serverUrl": "http://10.90.20.201:8002/signalR",
     "serviceProvider": "RDVPREM",
-    "enabled": true,
     "terminalsSimulation": ["3001", "3002", "3003", "3004", "3005"]
   }
 }
\ No newline at end of file
diff --git a/docs/changelog.md b/docs/changelog.md
index 3a702e5..ce86c5d 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -24,6 +24,15 @@
   - Roadmap des fonctionnalités futures
   - Structure moderne avec emojis et organisation claire
 
+### Configuration
+- **Nettoyage complet du config.json** : Suppression des éléments obsolètes
+  - Suppression de la section agents (maintenant géré via SignalR)
+  - Suppression de la section centres (fournis par le serveur)
+  - Suppression de la section CTI (ancien système de simulation)
+  - Suppression de la section preferences (non utilisée)
+  - Conservation uniquement de la configuration SignalR essentielle
+  - Fichier réduit de 118 lignes à 8 lignes
+
 ## [1.2.14] - 2025-09-04
 
 ### Ajouté