diff --git a/nre/apps/delegate/delegate.cc b/nre/apps/delegate/delegate.cc
index 3922b12..a1b1d40 100644
--- a/nre/apps/delegate/delegate.cc
+++ b/nre/apps/delegate/delegate.cc
@@ -24,7 +24,7 @@ static Pt *echo;
 
 PORTAL static void portal_getcap(capsel_t) {
     UtcbFrameRef uf;
-    // TODO delegate cap
+    uf.delegate(echo->sel());
 }
 
 PORTAL static void portal_echo(capsel_t) {
@@ -43,10 +43,20 @@ static void service() {
 
 // wants to call the echo portal
 static void client(Pt &getcap) {
-    // TODO request echo portal cap
+    capsel_t cap = CapSelSpace::get().allocate(1);
+    {
+        UtcbFrame uf;
+        uf.delegation_window(Crd(cap,0,Crd::OBJ_ALL));
+        getcap.call(uf);
+    }
 
+    // call portal
     int res;
-    // TODO call portal
+    Pt echopt(cap);
+    UtcbFrame uf;
+    uf << 42;
+    echopt.call(uf);
+    uf >> res;
 
     Serial::get() << "Hello World: " << res << "\n";
 }
diff --git a/nre/apps/echo/echo.cc b/nre/apps/echo/echo.cc
index 770c4bd..10c61a8 100644
--- a/nre/apps/echo/echo.cc
+++ b/nre/apps/echo/echo.cc
@@ -22,9 +22,10 @@ using namespace nre;
 
 PORTAL static void portal_echo(capsel_t) {
     UtcbFrameRef uf;
-    // TODO receive integer
+    int x;
+    uf >> x;
     uf.finish_input();
-    // TODO echo integer back
+    uf << x;
 }
 
 int main() {