Strange part that my LB receives invite with Route header:
U 2015/07/22 10:46:19.531380 10.101.241.55:5060 -> 10.101.237.133:5060
INVITE sip:11 at 10.50.210.9:50365 SIP/2.0.
Record-Route: <sip:10.101.241.55;lr;nat=yes>.
Record-Route: <sip:10.101.237.133;lr;nat=yes>.
Via: SIP/2.0/UDP 10.101.241.55;branch=z9hG4bK9f82.ae0b52341a6aa41d8f28e7f65ed9fd55.0.
Route: <sip:loadbalancer at 10.101.237.133;lr;received=sip:10.50.210.9:50365>.
Via: SIP/2.0/UDP 10.101.237.133;rport=5060;branch=z9hG4bK9f82.68623c2d6329f689d3ab43fdd3cf83c5.0.
Via: SIP/2.0/UDP 192.168.5.148:55529;received=10.50.210.9;branch=z9hG4bK.jWzhtRBsW;rport=6574.
From: <sip:22 at voipdev.mydomain.net>;tag=AZWk8e87s.
To: sip:11 at voipdev.mydomain.net.
CSeq: 21 INVITE.
Call-ID: LJoKbYM0YY.
Max-Forwards: 69.
Supported: outbound.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE.
Content-Type: application/sdp.
Content-Length: 577.
Contact: <sip:22 at 10.50.210.9:6574>;+sip.instance="<urn:uuid:c1c7dbe5-7dac-4d3f-a496-af9fde38a0e7>".
User-Agent: LinphoneAndroid/2.4.1 (belle-sip/1.4.1).
Path: <sip:loadbalancer at 10.101.237.133;lr;received=sip:10.50.210.9:6574>.
.
v=0.
o=22 4026 1869 IN IP4 10.101.254.33.
s=Talk.
c=IN IP4 10.101.254.33.
b=AS:380.
t=0 0.
a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics.
m=audio 46696 RTP/AVP 96 97 98 99 0 8 101 100 102.
a=rtpmap:96 opus/48000/2.
a=fmtp:96 useinbandfec=1; stereo=0; sprop-stereo=0.
a=rtpmap:97 SILK/16000.
a=rtpmap:98 speex/16000.
a=fmtp:98 vbr=on.
a=rtpmap:99 speex/8000.
a=fmtp:99 vbr=on.
a=rtpmap:101 telephone-event/48000.
a=rtpm
But instead of sending this Invite to: received=sip:
10.50.210.9:50365 it sends back to Kamailio Proxy(10.101.241.55), even if I have following line in my config.