[SR-Users] Normal behaviour with loose_routing

[Alex Balashov]

On Tue, Jan 30, 2018 at 06:25:57PM +0100, Loic Chabert wrote:

> ACK messages are in the same INVITE transaction ?

No, e2e ACKs are a transaction in their own right. 

However:

(a) They will have the same CSeq number as the INVITE to which they
correspond;

(b) They are a bit "special" in that they gather no responses.

> My SBC is asterisk, and does not insert Record-route headers. Is it a
> normal behaviour for an SBC ?

Only proxies add Record-Route headers. The job of the endpoints is to
marshal them into Route headers in in-dialog requests.

-- Alex

-- 
Alex Balashov | Principal | Evariste Systems LLC

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