feat: add support for inbound trunk registration (Receive mode) for FXO gateways like Grandstream HT813 and analog Livebox integration

public/api.php

@@ -1086,7 +1086,15 @@ try {
             $username               = trim((string)($payload['username'] ?? ''));
             $auth_username          = trim((string)($payload['auth_username'] ?? ''));
             $secret                 = trim((string)($payload['secret'] ?? ''));
-            $register               = ($auth_mode === 'ip') ? 0 : (int)!empty($payload['register']);
+
+            $rawRegMode             = strtolower(trim((string)($payload['registration_mode'] ?? '')));
+            if (in_array($rawRegMode, ['send', 'receive', 'none'], true)) {
+                $registration_mode = $rawRegMode;
+            } else {
+                $registration_mode = (!empty($payload['register']) && $auth_mode !== 'ip') ? 'send' : 'none';
+            }
+            $register               = ($registration_mode === 'send') ? 1 : 0;
+
             $server_uri             = trim((string)($payload['server_uri'] ?? ''));
             $client_uri             = trim((string)($payload['client_uri'] ?? ''));
             $contact_user           = trim((string)($payload['contact_user'] ?? ''));
@@ -1130,8 +1138,17 @@ try {
             $cleanDidRoutes = ConfigGenerator::normalizeInboundRoutes(json_encode($didRoutesRaw));
             $did_routes_json = json_encode($cleanDidRoutes, JSON_UNESCAPED_UNICODE);
 
-            if ($name === '' || $host === '') {
-                throw new InvalidArgumentException("Le nom du Trunk et l'hôte SIP opérateur sont requis.");
+            if ($name === '') {
+                throw new InvalidArgumentException("Le nom du Trunk est requis.");
+            }
+            if ($registration_mode === 'receive') {
+                if ($username === '' || $secret === '') {
+                    throw new InvalidArgumentException("En mode Réception (ex: passerelle Grandstream HT813 / Livebox), l'Identifiant (Username) et le Mot de passe SIP sont requis pour authentifier la passerelle.");
+                }
+            } else {
+                if ($host === '') {
+                    throw new InvalidArgumentException("L'hôte SIP opérateur (Serveur SIP) est requis.");
+                }
             }
 
             $params = [
@@ -1144,6 +1161,7 @@ try {
                 ':username'                 => $username,
                 ':auth_username'            => $auth_username,
                 ':secret'                   => $secret,
+                ':registration_mode'        => $registration_mode,
                 ':register'                 => $register,
                 ':server_uri'               => $server_uri,
                 ':client_uri'               => $client_uri,
@@ -1192,7 +1210,8 @@ try {
                     UPDATE trunks SET
                         name = :name, host = :host, port = :port, outbound_proxy = :outbound_proxy,
                         transport = :transport, auth_mode = :auth_mode, username = :username,
-                        auth_username = :auth_username, secret = :secret, register = :register,
+                        auth_username = :auth_username, secret = :secret,
+                        registration_mode = :registration_mode, register = :register,
                         server_uri = :server_uri, client_uri = :client_uri, contact_user = :contact_user,
                         expiration = :expiration, retry_interval = :retry_interval,
                         max_retries = :max_retries, forbidden_retry_interval = :forbidden_retry_interval,
@@ -1217,7 +1236,7 @@ try {
                 $stmt = $db->prepare('
                     INSERT INTO trunks (
                         name, host, port, outbound_proxy, transport, auth_mode, username, auth_username, secret,
-                        register, server_uri, client_uri, contact_user, expiration, retry_interval,
+                        registration_mode, register, server_uri, client_uri, contact_user, expiration, retry_interval,
                         max_retries, forbidden_retry_interval, fatal_retry_interval, line_support,
                         from_user, from_domain, outbound_callerid, send_pai, send_rpid, send_diversion,
                         trust_id_inbound, codecs, dtmf_mode, media_encryption, nat_symmetric, direct_media,
@@ -1226,7 +1245,7 @@ try {
                         outbound_prefix, custom_endpoint_params, custom_reg_params, custom_aor_params, moh_sound_id, enabled
                     ) VALUES (
                         :name, :host, :port, :outbound_proxy, :transport, :auth_mode, :username, :auth_username, :secret,
-                        :register, :server_uri, :client_uri, :contact_user, :expiration, :retry_interval,
+                        :registration_mode, :register, :server_uri, :client_uri, :contact_user, :expiration, :retry_interval,
                         :max_retries, :forbidden_retry_interval, :fatal_retry_interval, :line_support,
                         :from_user, :from_domain, :outbound_callerid, :send_pai, :send_rpid, :send_diversion,
                         :trust_id_inbound, :codecs, :dtmf_mode, :media_encryption, :nat_symmetric, :direct_media,
@@ -1237,7 +1256,8 @@ try {
                     ON CONFLICT(name) DO UPDATE SET
                         host = excluded.host, port = excluded.port, outbound_proxy = excluded.outbound_proxy,
                         transport = excluded.transport, auth_mode = excluded.auth_mode, username = excluded.username,
-                        auth_username = excluded.auth_username, secret = excluded.secret, register = excluded.register,
+                        auth_username = excluded.auth_username, secret = excluded.secret,
+                        registration_mode = excluded.registration_mode, register = excluded.register,
                         server_uri = excluded.server_uri, client_uri = excluded.client_uri, contact_user = excluded.contact_user,
                         expiration = excluded.expiration, retry_interval = excluded.retry_interval,
                         max_retries = excluded.max_retries, forbidden_retry_interval = excluded.forbidden_retry_interval,
@@ -1259,9 +1279,10 @@ try {
                 $stmt->execute($params);
             }
 
+            $displayHost = $host !== '' ? "{$host}:{$port}" : "Passerelle locale / HT813";
             echo json_encode([
                 'success' => true,
-                'message' => "Trunk SIP « {$name} » ({$host}:{$port}) sauvegardé avec tous ses paramètres PJSIP.",
+                'message' => "Trunk SIP « {$name} » ({$displayHost}) sauvegardé avec tous ses paramètres PJSIP.",
             ]);
             break;
 

public/assets/app.js

@@ -1579,14 +1579,25 @@ function renderTrunksTable() {
     tbody.innerHTML = rows.map(t => {
         const slug = `trunk-${slugifyTrunkName(t.name)}`;
         const regInfo = regs[slug];
+        const regMode = t.registration_mode || (Number(t.register) === 1 ? 'send' : 'none');
         const isIpAuth = t.auth_mode === 'ip';
-        const wantsReg = !isIpAuth && Number(t.register) === 1;
 
         let statusBadge = '';
         if (Number(t.enabled ?? 1) === 0) {
             statusBadge = `<span class="px-2.5 py-0.5 rounded-full text-xs font-medium bg-anthracite-950 text-slate-400 border border-anthracite-700">Désactivé</span>`;
-        } else if (isIpAuth || !wantsReg) {
-            statusBadge = `<span class="px-2.5 py-0.5 rounded-full text-xs font-semibold bg-cyan-500/15 text-cyan-300 border border-cyan-500/30">Peering / Sans Reg.</span>`;
+        } else if (regMode === 'receive') {
+            const contacts = appState.metrics?.asterisk?.contacts || [];
+            const isOnline = contacts.some(c =>
+                (c.extension === slug || c.extension === t.username || (t.username && c.uri && c.uri.includes(t.username)))
+                && String(c.status || '').toLowerCase().includes('avail')
+            );
+            if (isOnline) {
+                statusBadge = `<span class="inline-flex items-center gap-1.5 px-2.5 py-0.5 rounded-full text-xs font-bold bg-emerald-500/20 text-emerald-300 border border-emerald-500/30"><i class="w-1.5 h-1.5 rounded-full bg-emerald-400 animate-pulse"></i>Passerelle En ligne</span>`;
+            } else {
+                statusBadge = `<span class="inline-flex items-center gap-1.5 px-2.5 py-0.5 rounded-full text-xs font-semibold bg-amber-500/20 text-amber-300 border border-amber-500/30">En attente passerelle (Receive)</span>`;
+            }
+        } else if (isIpAuth || regMode === 'none') {
+            statusBadge = `<span class="px-2.5 py-0.5 rounded-full text-xs font-semibold bg-purple-500/15 text-purple-300 border border-purple-500/30">Peering IP direct</span>`;
         } else if (regInfo && /Registered/i.test(regInfo.status)) {
             statusBadge = `<span class="inline-flex items-center gap-1.5 px-2.5 py-0.5 rounded-full text-xs font-bold bg-emerald-500/20 text-emerald-300 border border-emerald-500/30"><i class="w-1.5 h-1.5 rounded-full bg-emerald-400 animate-pulse"></i>Registered</span>`;
         } else if (regInfo) {
@@ -1618,7 +1629,9 @@ function renderTrunksTable() {
                 </td>
                 <td class="py-3.5 px-4">${statusBadge}</td>
                 <td class="py-3.5 px-4">
-                    <div class="font-mono text-xs text-indigo-300">${escapeHtml(t.host)}:${Number(t.port)}</div>
+                    <div class="font-mono text-xs ${t.host ? 'text-indigo-300' : 'text-emerald-300'}">
+                        ${t.host ? escapeHtml(t.host) + ':' + Number(t.port || 5060) : 'Passerelle locale (Dynamique)'}
+                    </div>
                     ${t.outbound_proxy ? `<div class="text-[11px] font-mono text-slate-400 truncate max-w-[180px]">Proxy: ${escapeHtml(t.outbound_proxy)}</div>` : ''}
                 </td>
                 <td class="py-3.5 px-4">
@@ -2085,6 +2098,57 @@ function parseFreePbxConfig() {
     }
 }
 
+function onTrunkRegistrationModeChange(mode) {
+    const form = document.getElementById('form-trunk');
+    if (!form) return;
+
+    const hostInput = form.elements['host'];
+    const hostLabel = document.getElementById('trunk-host-label');
+    const hostHint = document.getElementById('trunk-host-hint');
+    const receiveGuide = document.getElementById('trunk-receive-guide');
+    const regNotice = document.getElementById('trunk-reg-outbound-notice');
+
+    if (mode === 'receive') {
+        if (hostInput) {
+            hostInput.required = false;
+            hostInput.placeholder = 'Optionnel (vide = IP découverte dynamiquement au REGISTER du HT813)';
+        }
+        if (hostLabel) {
+            hostLabel.innerHTML = 'Serveur SIP / IP Passerelle <span class="text-emerald-400 font-semibold">(Optionnel en mode Réception)</span>';
+        }
+        hostHint?.classList.remove('hidden');
+        receiveGuide?.classList.remove('hidden');
+        regNotice?.classList.remove('hidden');
+        if (form.elements['register']) form.elements['register'].checked = false;
+        if (form.elements['line_support']) form.elements['line_support'].checked = false;
+    } else if (mode === 'none') {
+        if (hostInput) {
+            hostInput.required = true;
+            hostInput.placeholder = 'ex: 192.168.1.250 ou sbc.direct.net';
+        }
+        if (hostLabel) {
+            hostLabel.innerHTML = 'Serveur SIP / SBC / Passerelle * <span class="text-slate-400">(Host / IP)</span>';
+        }
+        hostHint?.classList.add('hidden');
+        receiveGuide?.classList.add('hidden');
+        regNotice?.classList.remove('hidden');
+        if (form.elements['register']) form.elements['register'].checked = false;
+    } else {
+        // mode === 'send'
+        if (hostInput) {
+            hostInput.required = true;
+            hostInput.placeholder = 'ex: sbc.operateur.net ou siptrunk.ovh.net';
+        }
+        if (hostLabel) {
+            hostLabel.innerHTML = 'Serveur SIP / SBC / Passerelle * <span class="text-slate-400">(Host / IP)</span>';
+        }
+        hostHint?.classList.add('hidden');
+        receiveGuide?.classList.add('hidden');
+        regNotice?.classList.add('hidden');
+        if (form.elements['register']) form.elements['register'].checked = true;
+    }
+}
+
 function applyTrunkArchitecture(arch) {
     const form = document.getElementById('form-trunk');
     if (!form) return;
@@ -2095,17 +2159,31 @@ function applyTrunkArchitecture(arch) {
             port: 5060,
             transport: 'udp',
             auth_mode: 'userpass',
+            registration_mode: 'send',
             register: true,
             line_support: true,
             media_encryption: 'no',
             nat_symmetric: true,
             qualify_frequency: 60
         },
+        gateway_receive: {
+            label: 'Passerelle FXO / Analogique (Grandstream HT813, Livebox, ATA)',
+            port: 5060,
+            transport: 'udp',
+            auth_mode: 'userpass',
+            registration_mode: 'receive',
+            register: false,
+            line_support: false,
+            media_encryption: 'no',
+            nat_symmetric: true,
+            qualify_frequency: 60
+        },
         ip_peering: {
             label: 'Peering IP / SBC / Passerelle (Sans REGISTER)',
             port: 5060,
             transport: 'udp',
             auth_mode: 'ip',
+            registration_mode: 'none',
             register: false,
             line_support: false,
             media_encryption: 'no',
@@ -2117,6 +2195,7 @@ function applyTrunkArchitecture(arch) {
             port: 5061,
             transport: 'tls',
             auth_mode: 'userpass',
+            registration_mode: 'send',
             register: true,
             line_support: true,
             media_encryption: 'sdes',
@@ -2134,6 +2213,13 @@ function applyTrunkArchitecture(arch) {
     form.querySelectorAll('input[name="auth_mode"]').forEach(r => { r.checked = (r.value === a.auth_mode); });
     toggleTrunkAuthFields(a.auth_mode);
 
+    if (a.registration_mode) {
+        form.querySelectorAll('input[name="registration_mode"]').forEach(r => {
+            r.checked = (r.value === a.registration_mode);
+        });
+        onTrunkRegistrationModeChange(a.registration_mode);
+    }
+
     form.elements['register'].checked = a.register;
     form.elements['line_support'].checked = a.line_support;
     form.elements['media_encryption'].value = a.media_encryption;
@@ -2152,11 +2238,18 @@ function openTrunkModal(trunk = null) {
 
     form.elements['id'].value = trunk ? trunk.id : '';
     form.elements['name'].value = trunk ? trunk.name : '';
-    form.elements['host'].value = trunk ? trunk.host : '';
+    form.elements['host'].value = trunk ? (trunk.host ?? '') : '';
     form.elements['port'].value = trunk ? (trunk.port ?? 5060) : 5060;
     form.elements['outbound_proxy'].value = trunk ? (trunk.outbound_proxy ?? '') : '';
     form.elements['transport'].value = trunk ? (trunk.transport ?? 'udp') : 'udp';
 
+    const regMode = trunk ? (trunk.registration_mode || (Number(trunk.register) === 1 ? 'send' : 'none')) : 'send';
+    form.querySelectorAll('input[name="registration_mode"]').forEach(r => {
+        r.checked = (r.value === regMode);
+    });
+    onTrunkRegistrationModeChange(regMode);
+    form.elements['transport'].value = trunk ? (trunk.transport ?? 'udp') : 'udp';
+
     const authMode = trunk ? (trunk.auth_mode || 'userpass') : 'userpass';
     form.querySelectorAll('input[name="auth_mode"]').forEach(r => {
         r.checked = (r.value === authMode);
@@ -2168,6 +2261,17 @@ function openTrunkModal(trunk = null) {
     form.elements['secret'].value = trunk ? (trunk.secret ?? '') : '';
     form.elements['enabled'].checked = trunk ? Number(trunk.enabled ?? 1) === 1 : true;
 
+    const uInput = form.elements['username'];
+    const updateGuide = () => {
+        const val = uInput.value.trim() || 'Même valeur que Username';
+        const gUser = document.getElementById('ht813-guide-user');
+        const gAuth = document.getElementById('ht813-guide-auth');
+        if (gUser) gUser.textContent = val;
+        if (gAuth) gAuth.textContent = val;
+    };
+    uInput.oninput = updateGuide;
+    updateGuide();
+
     // Onglet 2 : Registration & Identité SIP
     form.elements['register'].checked = trunk ? Number(trunk.register ?? 1) === 1 : true;
     form.elements['line_support'].checked = trunk ? Number(trunk.line_support ?? 1) === 1 : true;
@@ -3583,6 +3687,7 @@ document.addEventListener('DOMContentLoaded', () => {
         const fd = new FormData(form);
         const payload = Object.fromEntries(fd.entries());
 
+        payload.registration_mode = form.querySelector('input[name="registration_mode"]:checked')?.value || 'send';
         payload.enabled          = form.elements['enabled'].checked ? 1 : 0;
         payload.register         = form.elements['register'].checked ? 1 : 0;
         payload.line_support     = form.elements['line_support'].checked ? 1 : 0;

public/index.php

@@ -3278,6 +3278,9 @@ $currentUser = Auth::getUsername();
                     <button type="button" onclick="applyTrunkArchitecture('register_auth')" class="px-2.5 py-1 rounded-lg bg-anthracite-950 hover:bg-indigo-600/30 border border-anthracite-600 text-indigo-300 font-medium transition">
                         Trunk avec Enregistrement (REGISTER + Auth)
                     </button>
+                    <button type="button" onclick="applyTrunkArchitecture('gateway_receive')" class="px-2.5 py-1 rounded-lg bg-anthracite-950 hover:bg-emerald-600/30 border border-emerald-500/50 text-emerald-300 font-medium transition flex items-center gap-1">
+                        <span>📟 Passerelle FXO / Analogique (HT813, Livebox)</span>
+                    </button>
                     <button type="button" onclick="applyTrunkArchitecture('ip_peering')" class="px-2.5 py-1 rounded-lg bg-anthracite-950 hover:bg-indigo-600/30 border border-anthracite-600 text-purple-300 font-medium transition">
                         Peering IP / SBC / Passerelle (Sans REGISTER)
                     </button>
@@ -3340,16 +3343,78 @@ $currentUser = Auth::getUsername();
 
                 <!-- SOUS-ONGLET 1 : SERVEUR, AUTHENTIFICATION & ROUTAGE DIRECT -->
                 <div id="trunk-panel-general" class="trunk-subpanel space-y-4">
+                    <!-- Mode d'Enregistrement SIP (Send / Receive / None) -->
+                    <div class="p-4 rounded-xl bg-anthracite-950 border border-anthracite-700 space-y-3">
+                        <div class="flex flex-wrap items-center justify-between gap-2">
+                            <span class="text-xs font-bold uppercase tracking-wider text-emerald-300">Mode d'Enregistrement SIP (Registration)</span>
+                            <span class="text-[11px] text-slate-400">Définit le sens de l'enregistrement ou le mode peering</span>
+                        </div>
+                        <div class="grid grid-cols-1 sm:grid-cols-3 gap-3 text-xs">
+                            <label class="flex items-start gap-2.5 p-3 rounded-xl bg-anthracite-900 border border-anthracite-700 cursor-pointer hover:border-indigo-500/50 transition">
+                                <input type="radio" name="registration_mode" value="send" checked onchange="onTrunkRegistrationModeChange(this.value)" class="mt-0.5">
+                                <div>
+                                    <div class="text-white font-semibold flex items-center gap-1.5">
+                                        <span>Émission (Send)</span>
+                                        <span class="text-[10px] px-1.5 py-0.2 rounded bg-indigo-500/20 text-indigo-300">Défaut</span>
+                                    </div>
+                                    <div class="text-[11px] text-slate-400 mt-0.5">Asterisk s'enregistre vers l'opérateur (OVH, Keyyo...). Serveur SIP requis.</div>
+                                </div>
+                            </label>
+                            <label class="flex items-start gap-2.5 p-3 rounded-xl bg-anthracite-900 border border-emerald-500/40 cursor-pointer hover:border-emerald-500 transition">
+                                <input type="radio" name="registration_mode" value="receive" onchange="onTrunkRegistrationModeChange(this.value)" class="mt-0.5">
+                                <div>
+                                    <div class="text-emerald-300 font-semibold flex items-center gap-1.5">
+                                        <span>Réception (Receive)</span>
+                                        <span class="text-[10px] px-1.5 py-0.2 rounded bg-emerald-500/20 text-emerald-300">Passerelle FXO</span>
+                                    </div>
+                                    <div class="text-[11px] text-slate-300 mt-0.5">La passerelle s'enregistre sur Asterisk (Grandstream HT813, Livebox). Hôte libre.</div>
+                                </div>
+                            </label>
+                            <label class="flex items-start gap-2.5 p-3 rounded-xl bg-anthracite-900 border border-anthracite-700 cursor-pointer hover:border-purple-500/50 transition">
+                                <input type="radio" name="registration_mode" value="none" onchange="onTrunkRegistrationModeChange(this.value)" class="mt-0.5">
+                                <div>
+                                    <div class="text-purple-300 font-semibold flex items-center gap-1.5">
+                                        <span>Aucun (None)</span>
+                                        <span class="text-[10px] px-1.5 py-0.2 rounded bg-purple-500/20 text-purple-300">Peering IP</span>
+                                    </div>
+                                    <div class="text-[11px] text-slate-400 mt-0.5">Interconnexion directe sans enregistrement (Trunk IP dédié, SBC). Serveur SIP requis.</div>
+                                </div>
+                            </label>
+                        </div>
+
+                        <!-- Guide interactif d'aide pour Grandstream HT813 / Livebox FXO -->
+                        <div id="trunk-receive-guide" class="hidden p-3.5 rounded-xl bg-emerald-950/40 border border-emerald-500/40 text-xs text-slate-200 space-y-2">
+                            <div class="flex items-center gap-2 font-bold text-emerald-300 text-xs">
+                                <span>💡 Guide Rapide : Paramétrage de votre Grandstream HT813 / HT503 (FXO)</span>
+                            </div>
+                            <p class="text-[11px] text-slate-300 leading-relaxed">
+                                Dans l'interface web du boîtier HT813 (onglet <strong>FXO Port</strong> relié à la prise téléphone verte de votre Livebox / Box opérateur) :
+                            </p>
+                            <div class="grid grid-cols-1 sm:grid-cols-2 gap-2 text-[11px] font-mono bg-anthracite-950 p-3 rounded-lg border border-emerald-500/25">
+                                <div>• <strong>Primary SIP Server</strong> : <span class="text-emerald-300 font-bold"><?= htmlspecialchars($_SERVER['SERVER_ADDR'] ?? '10.10.175.204') ?>:5060</span></div>
+                                <div>• <strong>SIP Registration</strong> : <span class="text-emerald-300 font-bold">Yes</span></div>
+                                <div>• <strong>SIP User ID</strong> : <span class="text-indigo-300 font-bold" id="ht813-guide-user">Même valeur que Username</span></div>
+                                <div>• <strong>Authenticate ID</strong> : <span class="text-indigo-300 font-bold" id="ht813-guide-auth">Même valeur que Username</span></div>
+                                <div>• <strong>Authenticate Password</strong> : <span class="text-indigo-300 font-bold">Votre mot de passe secret</span></div>
+                                <div>• <strong>Stage Method (1/2)</strong> : <span class="text-slate-300">1 (Recommandé pour appel direct)</span></div>
+                                <div class="sm:col-span-2 text-slate-300 font-sans border-t border-anthracite-800 pt-2 mt-1">
+                                    • <strong>Unconditional Call Forward to VoIP</strong> : Définir <em>User ID</em> = votre numéro (ex: <code class="text-amber-300 font-mono">0494679572</code>) et <em>SIP Server</em> = <code class="text-amber-300 font-mono">ch1:<?= htmlspecialchars($_SERVER['SERVER_ADDR'] ?? '10.10.175.204') ?>:5060;</code>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+
                     <div class="grid grid-cols-1 sm:grid-cols-4 gap-4">
                         <div class="sm:col-span-1">
                             <label class="block text-xs font-medium text-slate-200 mb-1">Nom du Trunk * <span class="text-slate-400">(ID PJSIP)</span></label>
-                            <input type="text" name="name" placeholder="ex: mon-trunk-sip" required
+                            <input type="text" name="name" placeholder="ex: mon-trunk-sip ou 0494679572" required
                                 class="w-full px-3 py-2 rounded-lg bg-anthracite-950 border border-anthracite-700 text-sm text-white font-mono">
                         </div>
                         <div class="sm:col-span-2">
-                            <label class="block text-xs font-medium text-slate-200 mb-1">Serveur SIP / SBC / Passerelle * <span class="text-slate-400">(Host / IP)</span></label>
-                            <input type="text" name="host" placeholder="ex: sbc.operateur.net ou 192.168.1.250" required oninput="syncTrunkHostDomain(this.value)"
+                            <label id="trunk-host-label" class="block text-xs font-medium text-slate-200 mb-1">Serveur SIP / SBC / Passerelle * <span class="text-slate-400">(Host / IP)</span></label>
+                            <input type="text" name="host" id="trunk-host-input" placeholder="ex: sbc.operateur.net ou 192.168.1.250" required oninput="syncTrunkHostDomain(this.value)"
                                 class="w-full px-3 py-2 rounded-lg bg-anthracite-950 border border-anthracite-700 text-sm text-white font-mono">
+                            <div id="trunk-host-hint" class="hidden text-[10px] text-emerald-400 mt-1">En mode Réception (Receive), l'hôte peut rester vide (découverte dynamique du HT813 lors du REGISTER).</div>
                         </div>
                         <div class="sm:col-span-1">
                             <label class="block text-xs font-medium text-slate-200 mb-1">Port SIP * <span class="text-slate-400">(Port)</span></label>
@@ -3520,8 +3585,13 @@ $currentUser = Auth::getUsername();
                     </div>
                 </div>
 
-                <!-- SOUS-ONGLET 2 : ENREGISTREMENT (REGISTRATION) & IDENTITÉ SIP -->
+                <!-- SOUS-ONGLET 3 : ENREGISTREMENT (REGISTRATION) & IDENTITÉ SIP -->
                 <div id="trunk-panel-identity" class="trunk-subpanel hidden space-y-4">
+                    <div id="trunk-reg-outbound-notice" class="hidden p-3.5 rounded-xl bg-indigo-950/40 border border-indigo-500/40 text-xs text-indigo-200 flex items-center gap-2">
+                        <span>ℹ️</span>
+                        <span>En mode <strong>Réception (Passerelle type HT813)</strong> ou <strong>Peering IP direct (None)</strong>, Asterisk n'émet aucun SIP REGISTER sortant. Les paramètres d'enregistrement ci-dessous ne s'appliquent qu'en mode <strong>Émission (Send)</strong>.</span>
+                    </div>
+
                     <div class="p-4 rounded-xl bg-anthracite-950 border border-anthracite-700 space-y-4">
                         <div class="flex flex-wrap items-center justify-between gap-2">
                             <span class="text-xs font-bold uppercase tracking-wider text-emerald-300">Paramètres d'Enregistrement SIP (<code class="text-emerald-300">[type = registration]</code>)</span>