diff --git a/libdino/src/service/call_state.vala b/libdino/src/service/call_state.vala
index c1f0522d..452deb4f 100644
--- a/libdino/src/service/call_state.vala
+++ b/libdino/src/service/call_state.vala
@@ -100,7 +100,17 @@ public class Dino.CallState : Object {
         if (use_cim) {
             XmppStream stream = stream_interactor.get_stream(call.account);
             if (stream == null) return;
-            stream.get_module(Xep.CallInvites.Module.IDENTITY).send_accept(stream, cim_counterpart, cim_call_id, cim_message_type);
+            StanzaNode? inner_node = null;
+            if (group_call != null) {
+                inner_node = new StanzaNode.build("muji", Xep.Muji.NS_URI).add_self_xmlns()
+                        .put_attribute("room", group_call.muc_jid.to_string());
+            } else if (peers.size == 1) {
+                foreach (PeerState peer in peers.values) {
+                    inner_node = new StanzaNode.build("jingle", Xep.CallInvites.NS_URI)
+                            .put_attribute("sid", peer.sid);
+                }
+            }
+            stream.get_module(Xep.CallInvites.Module.IDENTITY).send_accept(stream, cim_counterpart, cim_call_id, inner_node, cim_message_type);
         } else {
             foreach (PeerState peer in peers.values) {
                 peer.accept();
diff --git a/xmpp-vala/src/module/xep/0166_jingle/session.vala b/xmpp-vala/src/module/xep/0166_jingle/session.vala
index 577792ff..53a9c58d 100644
--- a/xmpp-vala/src/module/xep/0166_jingle/session.vala
+++ b/xmpp-vala/src/module/xep/0166_jingle/session.vala
@@ -426,7 +426,7 @@ public class Xmpp.Xep.Jingle.Session : Object {
                 reason_node.put_node(new StanzaNode.build(reason_name, NS_URI));
             }
             if (reason_text != null) {
-                reason_node.put_node(new StanzaNode.text(reason_text));
+                reason_node.put_node(new StanzaNode.build("text", NS_URI).put_node(new StanzaNode.text(reason_text)));
             }
             terminate_iq.put_node(reason_node);
         }
diff --git a/xmpp-vala/src/module/xep/0353_call_invite_message.vala b/xmpp-vala/src/module/xep/0353_call_invite_message.vala
index 38d87f43..8031beaf 100644
--- a/xmpp-vala/src/module/xep/0353_call_invite_message.vala
+++ b/xmpp-vala/src/module/xep/0353_call_invite_message.vala
@@ -40,8 +40,14 @@ namespace Xmpp.Xep.CallInvites {
             send_message(stream, to, call_id, "retract", "cancel", message_type);
         }
 
-        public void send_accept(XmppStream stream, Jid to, string call_id, string message_type) {
-            send_message(stream, to, call_id, "accept", null, message_type);
+        public void send_accept(XmppStream stream, Jid inviter, string call_id, StanzaNode? inner_node, string message_type) {
+            StanzaNode accept_node = new StanzaNode.build("accept", NS_URI).add_self_xmlns()
+                    .put_attribute("id", call_id);
+            if (inner_node != null) accept_node.put_node(inner_node);
+            MessageStanza invite_message = new MessageStanza() { to=inviter, type_=message_type };
+            MessageProcessingHints.set_message_hint(invite_message, MessageProcessingHints.HINT_STORE);
+            invite_message.stanza.put_node(accept_node);
+            stream.get_module(MessageModule.IDENTITY).send_message.begin(stream, invite_message);
         }
 
         public void send_reject(XmppStream stream, Jid to, string call_id, string message_type) {