We have had an issue with a number of our Group 500 units diconnecting ramdomally mid call in the last week or so.
Looking at the CDR report the Q.850 cause code for these calls were 490. I havent been able to find a definition for this code. Someone has mentioned this could be a software issue.
Of the 48 call with this code is reported on 43 of the call dropped out after 18 minutes and 15 or so Seconds
All of the units were upgraded to V220.127.116.11-600016 through our resource manager about a month ago, and there was no 490 codes appearing on the report until a week ago.
any ideas on this issue and how to resolve?
Hello @Fawnsk ,
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it is on SIP calls and only seems to effect incoming call only. H323 call have no issues when we change to them.
Once upon a time I had a similar issue and it was the F5 GTM shutting down the heartbeat call control on RPAD and killing calls. Possibly you have a similar issue in the network traffic flow?