SIP NOTIFY Message Contains Wrong Value in To: and From: Fields Which Causes a Break in the Call Flow
Last updated on OCTOBER 10, 2016
Applies to:Oracle Communications Service Broker - Version 18.104.22.168.0 and later
Information in this document applies to any platform.
Oracle Communication Service Controller/Broker (OCSC/OCSB) sends a SIP_SUBSCRIBE message to a SIP Application (OCCAS / Oracle Communications Converged Application Server).
In turn OCSC receives a SIP_202 message (status code = 202, which means Accepted) .
Later, OCSC sends a SIP_NOTIFY message to OCCAS with "To:" and "From:" fields which are exactly same as in the SIP_SUBCRIBE message.
OCCAS does not receive the SIP_NOTIFY message, but OCCAS sends back a SIP_481 message (status code = 481, which means Call/Transaction Does Not Exist).
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