Messages ACK or PRACK Missing Incorrectly in The Flow And Resulting in The Timeouted State
(Doc ID 2233969.1)
Last updated on FEBRUARY 09, 2022
Applies to:Oracle Communications Session Monitor - Version 3.3.x and later
Information in this document applies to any platform.
Certain types of messages are missing in OCOM (in the message flow, in Call Details' Messages tab or in downloaded pcap), depending on the scenario:
- - the ACK for the 200OK (of INVITE) that completes the 3 way connection establishment
- - the PRACK if reliable provisional messages are used
And the consequent messages are sometimes missing too.
A sample flow of how it could look like (but depending on scenario it may vary):
As well such a call would end after certain time with 'Timed out' State and before while Established the State details showing '200 OK seen, waiting for ACK', as shown on the picture:
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