Hello,

Kamailio does not handle media on its own (besides rtpengine and other services).

If you want to modify the SDP inside your processed SIP messages, the “sdpops” module is one good option.

Cheers,

Henning

--

Henning Westerholt – https://skalatan.de/blog/

Kamailio services – https://gilawa.com

From: sr-users <sr-users-bounces@lists.kamailio.org> On Behalf Of Luis Joel Borrego Soto
Sent: Friday, October 1, 2021 3:06 PM
To: sr-users@lists.kamailio.org
Subject: [SR-Users] [kamailio/kamailio] SIP Preconditions Settings?

Hi Team,

According with the RFC3312 (https://datatracker.ietf.org/doc/html/rfc3312)

The SDP parameters are the following

We define the following media level SDP attributes:

  current-status     =  "a=curr:" precondition-type
                        SP status-type SP direction-tag
  desired-status     =  "a=des:" precondition-type
                        SP strength-tag SP status-type
                        SP direction-tag
  confirm-status     =  "a=conf:" precondition-type
                        SP status-type SP direction-tag
  **precondition-type  =  "qos" | token
  strength-tag       =  ("mandatory" | "optional" | "none"
                     =  | "failure" | "unknown")**
  status-type        =  ("e2e" | "local" | "remote")
  direction-tag      =  ("none" | "send" | "recv" | "sendrecv")

Which one should be the equivalent in the Kamailio?, is the a specific module?

Br,

Joel Borrego (joel.borrego)