Will a dialed number show in the CDR log if the user hangs up before it rings through?

[Mark Burger]

Hello.  I'm running CUCM 10.5. I ship my CDR logs to an OfficeWatch server for department bill back, usage reports and 911 alerting. I received an alert that an extension dialed 911 and the call lasted 0 seconds. 30 seconds later, the user dialed 9,1 and the 10 digit number of a customer. I received an alert from the OfficeWatch application that a 911 call was made and of course it is there in the CDR log however, the call history on this phone does not show a 911 call was made.
Is it possible for someone to dial a number, hang up quick before it rings through, have the CDR logs show the dialed numbers but not have the call on the phone's history when viewing call history on the phone?

[Brandon Buffin]

In my experience there is no way to hang up fast enough for the call not to register on the phone. Did the next call of 9+1+number show up in placed calls?

Brandon

[Mark Burger]

Hi Brandon. Yes, the call that was made 30 seconds later was in the phone's call log.

[Mohammed al Baqari]

Also, do you have wrong pattern (route or translation) which matches 911
only when the users call 91+10digits.

[Mark Burger]

Hello Mohammed. Patterns look ok. I have thousands of 91(area)(number) calls but this was the only time the CDR showed a 911 call was made when 911 was supposedly not dialed.

[Jaime Valencia · Accepted solution]

I'd try to get the CUCM traces to confirm/deny what he's saying, it's fairly easy to delete an entry from the call logs on the phone, but you'd still see it in CDR and the traces.

[Mohammed al Baqari]

+5 Jim. Good catch. 

[Mark Burger]

Seems there was on,y one call in the phone history, the call made after the 911 call. That tells me someone cleared the history on the phone.

Thanks for the help!