diff --git a/ttcn3-mgw-test/MGCP_Test.cfg b/ttcn3-mgw-test/MGCP_Test.cfg
index f984173b..5a9d9e6a 100644
--- a/ttcn3-mgw-test/MGCP_Test.cfg
+++ b/ttcn3-mgw-test/MGCP_Test.cfg
@@ -13,6 +13,7 @@ mp_local_ipv4 := "172.18.4.181";
 mp_local_ipv6 := "fd02:db8:4::181";
 mp_remote_ipv4 := "172.18.4.180";
 mp_remote_ipv6 := "fd02:db8:4::180";
+mp_num_endpoints := 300;
 
 [MAIN_CONTROLLER]
 
diff --git a/ttcn3-mgw-test/osmo-mgw.cfg b/ttcn3-mgw-test/osmo-mgw.cfg
index 36485d87..f009bef6 100644
--- a/ttcn3-mgw-test/osmo-mgw.cfg
+++ b/ttcn3-mgw-test/osmo-mgw.cfg
@@ -55,7 +55,7 @@ mgcp
  sdp audio-payload send-name
  conn-timeout 0
  loop 0
- number endpoints 31
+ number endpoints 300
  allow-transcoding
  osmux off
  osmux bind-ip 172.18.4.180