[SR-Users] websocket transport protocol in Record-Route header

Juha Heinanen jh at tutpro.com
Sat Sep 26 20:07:05 CEST 2020

No matter if UA uses ws or wss to connect to Kamailio, when K routes
INVITE from this UA and record_route() is called, K always adds
;transport=ws parameter to Record-Route URI, for example,

Record-Route: <sip:;transport=ws;r2=on;lr>

In this test, Kamailio is listening on that port like this:

# SIP over WebSocket

Why doesn't K in this case add ;transport=wss to the R-R URI?

-- Juha

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