mncc_mt_loadgen: Don't call GsmCallFsm() with rtp_bridge=True

rtp_bridge=True triggers the automatic transmission of a MNCC_RTP_CREATE
when that call goes into ACTIVE state.  We don't want this in the
case of mncc_mt_loadgen, as we perform this at a much sooner point in
time.

Change-Id: I8816ccb8c7dce2958496c81a95f1a91bc33e772b

gsm_call_fsm.py

@@ -228,8 +228,6 @@ class GsmCallFsm(pykka.ThreadingActor):
 
     # RTP
     def _do_mncc_rtp_create_ind(self, mncc_msg):
-        if self.rtp_bridge == False:
-            raise Exception('GsmCallFsm', 'rtp_create_ind but not in RTP bridge mode')
         self.rtp = mncc_msg
         # notify the call controller about this
         self.ctrl_ref.tell({'type':'rtp_create_ind', 'called':self.called, 'rtp':self.rtp})
@@ -336,8 +334,6 @@ class GsmCallConnector(pykka.ThreadingActor):
 
     def rtp_created(self, msisdn, rtp):
         log.info('CallConnector:rtp_created(%s) %s' % (msisdn, rtp))
-        if self.rtp_bridge == False:
-            raise Exception('GsmCallConnector', 'rtp_created but not in RTP bridge mode')
         if msisdn == self.msisdn_a:     # A->B leg
             self.rtp_a = rtp
         elif msisdn == self.msisdn_b:   # B->A leg

mncc_mt_loadgen.py

@@ -103,7 +103,7 @@ class MTCallRtpsource(pykka.ThreadingActor):
         self.mncc_act = mncc_act
         self.ctrl_act = ctrl_act
         self.codecs_permitted = codecs_permitted
-        self.call = GsmCallFsm.start(self.mncc_act, self.actor_ref, True, self.codecs_permitted)
+        self.call = GsmCallFsm.start(self.mncc_act, self.actor_ref, False, self.codecs_permitted)
         self.callref = self.call.ask({'type':'get_callref'})
         self.state = 'NULL'
         self.rtp_msc = None