diff --git a/suites/aoip_encryption/register_a5_0_authopt.py b/suites/aoip_encryption/register_a5_0_authopt.py
index 0224ee0..6e5e459 100755
--- a/suites/aoip_encryption/register_a5_0_authopt.py
+++ b/suites/aoip_encryption/register_a5_0_authopt.py
@@ -4,8 +4,9 @@
 hlr = suite.hlr()
 bts = suite.bts()
 mgcpgw = suite.mgcpgw(bts_ip=bts.remote_addr())
+mgw_bsc = suite.mgw()
 msc = suite.msc(hlr, mgcpgw)
-bsc = suite.bsc(msc)
+bsc = suite.bsc(msc, mgw_bsc)
 stp = suite.stp()
 ms = suite.modem()
 
@@ -17,6 +18,7 @@
 stp.start()
 msc.start()
 mgcpgw.start()
+mgw_bsc.start()
 bsc.bts_add(bts)
 bsc.start()
 bts.start()