Ghost Calls to one extension

[tlmagnus]

I have a customer who is repeatedly having two different extensions that call a third extension.  When that user picks up, there is nobody there.  This happens at all hours of the day and night; if she does not pick up, the phone takes a message of dead air for just a second or two.  Any thoughts on what might be causing this?  Should I call a priest for an exorcism?? 
Thanks!

[ralph]

Do you happen to have a PRI that is brought into your prem via a router?

Also, have you checked your SMDR records to verify the source?

Ralph

[tlmagnus]

There is a PRI coming in -it is supplied via SIP, then converted to PRI with an adtran box.  Do you think that the ghost calls are actually from outside?  When the user gets a voicemail from the ghost calls, they appear to have come from the other extensions, but possibly they are coming from outside instead?  I have not looked at the SMDR yet,since I thought that the calls were coming from inside.

Thanks!

Trenton

[ralph]

Read through this posting to see what I had to deal with a few years ago.
http://mitelforums.com/forum/index.php?topic=3619.msg15380#msg15380

Ralph

[VinceWhirlwind]

I have a customer who is repeatedly having two different extensions that call a third extension.  When that user picks up, there is nobody there.  This happens at all hours of the day and night; if she does not pick up, the phone takes a message of dead air for just a second or two.  Any thoughts on what might be causing this?  Should I call a priest for an exorcism?? 
Thanks!

We had something similar, it was driving them crazy - pretty sure it was the "Call me back" feature causing it. Haven't had it since we disabled Call me Back.

[ralph]

Good point.
If the user hear a triple ring that means it's a call back.

Ralph