diff --git a/codecs.conf b/codecs.conf
index 475594a..a193dd1 100644
--- a/codecs.conf
+++ b/codecs.conf
@@ -18,7 +18,7 @@ vad => true
 
 ; variable bit rate [true / false]
 ; uses bit rate proportionate to voice complexity
-vbr => true
+vbr => false
 
 ; available bit rate [bps, 0 = off]
 ; encoding quality modulated to match this target bit rate
@@ -213,11 +213,17 @@ packetloss_percentage=10;
 ;                   ; audio bandwidth at 16Khz sample rate)
 ;cbr=yes ; Negotiate a constant bit rate
 
+[opusloss]
+type=opus
+cbr=yes
+packet_loss=10
+
 [opus48]
 type=opus
 max_playback_rate=48000
 max_bandwidth=wide
 bitrate=48000
+cbr=yes
 packet_loss=10
 
 [opus64]
diff --git a/extensions.conf b/extensions.conf
index 82def42..52d32e8 100644
--- a/extensions.conf
+++ b/extensions.conf
@@ -115,6 +115,9 @@ exten => _42401353.,5,NoOp()
 exten => _42400119.,5,NoOp()
  same =>            n,Dial(PJSIP/${EXTEN}@jrb0001)
 
+exten => _42403914.,5,NoOp()
+ same =>            n,Dial(PJSIP/${EXTEN}@kioubit)
+
 [jerry]
 exten => _4240XXXX.,1,Goto(extpeers,${EXTEN},5)
 exten => _0XXXX.   ,1,Goto(extpeers,424${EXTEN},5)
diff --git a/pjsip.conf b/pjsip.conf
index 3307352..2703833 100644
--- a/pjsip.conf
+++ b/pjsip.conf
@@ -18,7 +18,7 @@ bind=[::]:5060
 type=endpoint
 context=jerry
 ;message_context=jerry-msg
-allow=!all,opus48,opus,ulaw,speex,alaw
+allow=!all,opusloss,speex,ulaw,alaw
 ;direct_media=no
 rtp_symmetric=no
 force_rport=yes
@@ -26,7 +26,7 @@ rewrite_contact=yes
 
 [peers-endpoint-template](!,endpoint-template)
 context=jerry-peers
-allow=!all,ulaw,opus48,opus,speex,alaw
+allow=!all,speex,ulaw,alaw,opusloss
 
 [auth-template](!)
 type=auth
@@ -61,7 +61,6 @@ password=REDACTED
 [REDACTED](endpoint-template)
 auth = REDACTED
 aors = REDACTED
-allow=!all,opus48,opus,ulaw,speex,alaw
 callerid=Jerry <424036180003>
 [REDACTED](auth-template)
 auth_type=userpass
@@ -72,7 +71,6 @@ password=REDACTED
 [REDACTED](endpoint-template)
 auth = REDACTED
 aors = REDACTED
-allow=!all,opus48,opus,ulaw,speex,alaw
 callerid=Jerry <424036180004>
 [REDACTED](auth-template)
 auth_type=userpass
@@ -137,10 +135,20 @@ match=172.20.29.73
 [jrb0001](peers-endpoint-template)
 aors = jrb0001
 identify_by=ip
-allow=!all,opus48,opus,ulaw,speex,alaw
+allow=!all,opusloss,speex,ulaw,alaw
 [jrb0001](aor-template)
 contact=sip:[fd42:5d71:219:1003:216:3eff:fe9d:882f]:5060
 [jrb0001]
 type=identify
 endpoint=jrb0001
 match=fd42:5d71:219:1003:216:3eff:fe9d:882f
+
+[kioubit](peers-endpoint-template)
+aors = kioubit
+identify_by=ip
+[kioubit](aor-template)
+contact=sip:172.20.14.37:5060
+[kioubit]
+type=identify
+endpoint=kioubit
+match=172.20.14.37