opensips topology_hiding under parallel branch

tp_branch

U 127.0.0.1:5890 -> 127.1.1.1:5060                                                                                                                                                                     INVITE sip:9196@127.1.1.1 SIP/2.0.
Via: SIP/2.0/UDP 127.0.0.1:5890;branch=z9hG4bK.28AS9Y2Ex;rport.
From: <sip:bob@sinclar>;tag=1BOsfFjsD.
To: sip:9196@127.1.1.1.
CSeq: 20 INVITE.
Call-ID: uE~raQkHAw.
Max-Forwards: 70.
Supported: outbound.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE.
Content-Type: application/sdp.
Content-Length: 212.
Contact: <sip:itunali@127.0.0.1:5890>;+sip.instance="<urn:uuid:c1600cc5-e745-4996-9c04-61439f831c67>".
User-Agent: Linphone/3.8.1 (belle-sip/1.4.0).
.
v=0.
o=bob 107 2118 IN IP4 127.0.0.1.
s=Talk.
c=IN IP4 127.0.0.1.
t=0 0.
a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics.
m=audio 7078 RTP/AVP 0 8 101.
a=rtpmap:101 telephone-event/8000.


U 127.1.1.1:5060 -> 127.0.0.1:5890
SIP/2.0 100 Giving a try.
Via: SIP/2.0/UDP 127.0.0.1:5890;received=127.0.0.1;branch=z9hG4bK.28AS9Y2Ex;rport=5890.
From: <sip:bob@sinclar>;tag=1BOsfFjsD.
To: sip:9196@127.1.1.1.
CSeq: 20 INVITE.
Call-ID: uE~raQkHAw.
Server: OpenSIPS (2.1-rc2 (x86_64/linux)).
Content-Length: 0.
.

U 127.1.1.1:5060 -> 127.10.10.10:5060
INVITE sip:9196@127.10.10.10 SIP/2.0.
Via: SIP/2.0/UDP 127.1.1.1:5060;branch=z9hG4bKcff.84eb4647.0.
From: <sip:bob@sinclar>;tag=1BOsfFjsD.
To: sip:9196@127.1.1.1.
CSeq: 20 INVITE.
Call-ID: DLGCH_OjUbHDIYOxsOBw==.
Max-Forwards: 69.
Supported: outbound.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE.
Content-Type: application/sdp.
Content-Length: 212.
Contact: <sip:itunali@127.1.1.1;did=f7b.2f8a94f5>.
User-Agent: Linphone/3.8.1 (belle-sip/1.4.0).
P-hint: outbound.
.
v=0.
o=bob 107 2118 IN IP4 127.0.0.1.
s=Talk.
c=IN IP4 127.0.0.1.
t=0 0.
a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics.
m=audio 7078 RTP/AVP 0 8 101.
a=rtpmap:101 telephone-event/8000.

U 127.1.1.1:5060 -> 127.10.10.10:5060
INVITE sip:9195@127.10.10.10 SIP/2.0.
Via: SIP/2.0/UDP 127.1.1.1:5060;branch=z9hG4bKcff.84eb4647.1.
From: <sip:bob@sinclar>;tag=1BOsfFjsD.
To: sip:9196@127.1.1.1.
CSeq: 20 INVITE.
Call-ID: DLGCH_OjUbHDIYOxsOBw==.
Max-Forwards: 69.
Supported: outbound.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE.
Content-Type: application/sdp.
Content-Length: 212.
Contact: <sip:itunali@127.1.1.1;did=f7b.2f8a94f5>.
User-Agent: Linphone/3.8.1 (belle-sip/1.4.0).
P-hint: outbound.
.
v=0.
o=bob 107 2118 IN IP4 127.0.0.1.
s=Talk.
c=IN IP4 127.0.0.1.
t=0 0.
a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics.
m=audio 7078 RTP/AVP 0 8 101.
a=rtpmap:101 telephone-event/8000.


U 127.10.10.10:5060 -> 127.1.1.1:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP 127.1.1.1:5060;branch=z9hG4bKcff.84eb4647.0.
From: <sip:bob@sinclar>;tag=1BOsfFjsD.
To: <sip:9196@127.1.1.1>.
Call-ID: DLGCH_OjUbHDIYOxsOBw==.
CSeq: 20 INVITE.
User-Agent: FreeSWITCH-mod_sofia/1.4.18+git~20150312T185523Z~4eed221b69~64bit.
Content-Length: 0.
.


U 127.10.10.10:5060 -> 127.1.1.1:5060
SIP/2.0 482 Request merged.
Via: SIP/2.0/UDP 127.1.1.1:5060;branch=z9hG4bKcff.84eb4647.1.
From: <sip:bob@sinclar>;tag=1BOsfFjsD.
To: <sip:9196@127.1.1.1>;tag=ZDHFar7X2Hm1K.
Call-ID: DLGCH_OjUbHDIYOxsOBw==.
CSeq: 20 INVITE.
Content-Length: 0.
.


U 127.1.1.1:5060 -> 127.10.10.10:5060
ACK sip:9195@127.10.10.10 SIP/2.0.
Via: SIP/2.0/UDP 127.1.1.1:5060;branch=z9hG4bKcff.84eb4647.1.
From: <sip:bob@sinclar>;tag=1BOsfFjsD.
Call-ID: DLGCH_OjUbHDIYOxsOBw==.
To: <sip:9196@127.1.1.1>;tag=ZDHFar7X2Hm1K.
CSeq: 20 ACK.
Max-Forwards: 70.
User-Agent: OpenSIPS (2.1-rc2 (x86_64/linux)).
Content-Length: 0.