When configured for both online and offline charging, it may be desirable to allow sessions to proceed when there is a communications outage with the OCS.
By default Sentinel VoLTE will end a session if there is no connection to the OCS, or there is a timeout waiting for a response from the OCS.
When the Determine Charging system feature’s configuration parameter
for a session that detects an OCS communication problem, the session will proceed:
but no further Ro communication will occur even if Ro communication is re-established
and Rf and CDRs will continue to track the session
except a midsession OCS failure for a conference call will still result in the session ending.