On 11/20/2013 09:05 AM, Grant Bagdasarian wrote:

Does append_hf not work for CANCEL requests?

Correct: CANCEL is a "hop-by-hop" request where the proxy is a distinct hop, i.e. UAC sends a CANCEL to the proxy, and the proxy sends a separate CANCEL of its own on the branch that it initiated. This is in contrast to something like a BYE, and most requests, which are end-to-end request that the proxy simply relays upstream as received.

-- Alex

--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/

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