Just trued with latest commit:
```
SIP/2.0 180 Ringing
From: <sip:1111@1.2.3.4>;tag=08001964526856
To: <sip:sip:2222@5.6.7.8>;tag=vy~HzZJ
Call-ID: vqeU544121321136bcGhEfCjEbh
CSeq: 672321 INVITE
Content-Length: 0
Via: SIP/2.0/UDP
KITS1.MSS.LIFE.COM:5060;rport=5060;received=10.56.63.10;branch=z9hG4bK00000017483123160717
Record-Route: <sip:KITS1.MSS.LIFE.COM:5060;transport=UDP;lr>
```
Ericsson still terminate with a BYE
```
BYE sip:sip:2222@5.6.7.8 SIP/2.0
From: <sip:1111@1.2.3.4>;tag=08001964526856
To: <sip:sip:2222@5.6.7.8>;tag=vy~HzZJ
Max-Forwards: 70
Via: SIP/2.0/UDP KITS1.MSS.LIFE.COM:5060;branch=z9hG4bK00000017580316458612
Call-ID: vqeU544121321136bcGhEfCjEbh
CSeq: 672322 BYE
Reason: Q.850;cause=16
Content-Length: 0
```
And now kamailio responce to BYE from A side with "404 not here"
```
SIP/2.0 404 Not here
From: <sip:1111@1.2.3.4>;tag=08001964526856
To: <sip:sip:2222@5.6.7.8>;tag=vy~HzZJ
Via: SIP/2.0/UDP
KITS1.MSS.LIFE.COM:5060;branch=z9hG4bK00000017580316458612;rport=5060;received=10.56.63.10
Call-ID: vqeU544121321136bcGhEfCjEbh
CSeq: 672322 BYE
Content-Length: 0
```
Seems it fails in check "if (loose_route())"
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