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What are the possible situations for a no show tx?

Discussion of forensic issues related to all types of mobile phones and underlying technologies (GSM, GPRS, UMTS/3G, HSDPA, LTE, Bluetooth etc.)
Subforums: Mobile Telephone Case Law
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What are the possible situations for a no show tx?

Post Posted: Mon Aug 12, 2013 8:18 pm

What situations could can you think of that would cause a call placed from a cell phone to not appear on the cell phone's CDR as outgoing?

I'm pinging my head, voicemail, (as in calling the VM number, not holding down the #1 or the VM key - that shows up - hangup before someone answers, I've had that show up - Call forwarding being switched on to forward the call to another number - should show up with a CF designation.


The provider would be T-Mobile.

A good question would be, how do you know the calls took place?

CDR's from another phone on a different provider which go back to what we will call Phone A
Phone is not an Iphone, so Imessage is not a culprit either.


Any thoughts on what actions would cause Phone A to not register the action on CDR's that a call was placed or that any of the actions listed above took place.


Thank you.

P.S. Skype not installed, nor any other software.
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armresl
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