My topology is this: Alice --> Alice' Proxy(sipx) --> Bobs Proxy(sipx) --> Bob
I see that when Alice' INVITE arrives at Bob via Bobs Proxy, the sipx Proxy inserted two VIA-lines (192.168.2.1.80): INVITE sip:[email protected]:5060;x-sipX-nonat SIP/2.0 Record-Route: <sip:192.168.1.80:5060 ;lr;sipXecs-CallDest=INT;sipXecs-rs=%2Aauth%7E.%2Afrom%7EamVoc3FtbjlydA%60%60.900_ntap%2Aid%7EODQ5NC0xMQ%60%60%216b0821b6a261da78fe012377009f74a9> Record-Route: <sip:195.62.181.75:5060 ;lr;sipXecs-rs=%2Aauth%7E.%2Afrom%7EamVoc3FtbjlydA%60%60.900_ntap%2Aid%7ENTQzOS03%21091266734d7499d31d5628af230ce625> *Via: SIP/2.0/UDP 192.168.1.80;branch=z9hG4bK-XX-0f9bLDNkQgOy74zDAsltppVtVQ* *Via: SIP/2.0/UDP 192.168.1.80;branch=z9hG4bK-XX-0f95mrJa14rj63mK_sm6lT2EIg~dt9HIScBJMFXnRhF0aeRSA;id=8494-11 * Via: SIP/2.0/TCP 195.62.181.75:5060 ;branch=z9hG4bK-XX-145fN8he9AfbAQIXKvU54OLiaA Via: SIP/2.0/TCP 10.0.0.110:2058 ;branch=z9hG4bK-4gtwnlkyrl2h;rport=2058;id=5439-7 Transport-wise, this does not make any sense because one of the Proxy's VIA-lines would suffice. Is that because there are two virtual entities processing the message inside the proxy? I am just curious. Must be something related to the design of the SIP processing engine, right? Any insight would be highly appreciated. BR Robert
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