[sr-dev] [kamailio/kamailio] SIP Preconditions Settings? (#2866)

JoelBorrego notifications at github.com
Fri Oct 1 13:28:47 CEST 2021

Hi GitHub Team,

We are trying to find how to disable the SIP Precondition flag in the Kamailio, because until now the only way to do any changes is via UE (Smartphones with debug SW).

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?



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