For less than two minutes? I'm not saying it's impossible, but maybe improbable.
You can put a cell call on hold:
Hold call
How to put a call on hold and return to it
To put a call on hold and return to it, follow these steps:
To hold
While on a call, press the Menu key.
Touch Hold.
To return
While on hold, press the Menu key.
Touch Unhold.
http://support.t-mobile.com/docs/DOC-3963#Hold_call
Maybe that is what was happening?
Here is a concise listing of that call log, in order:
Trayvons call log.
From
http://media.nbcbayarea.com/documents/call+log.pdf
02/26/2012
11:13 Hollywood text
11:15 North Dade text
11:18 North Dade text
01:30 Miami text
02:20 Incoming 3
02:38 Incoming 103
02:45 Incoming 2
03:02 Incoming 2
03:04 Incoming 3
04:08 North Dade text
04:28 North Dade Incoming 41
05:09 North Dade Incoming 81
06:30 North Dade Incoming 13
06:41 Incoming 4
06:45 North Dade Incoming 5
06:46 North Dade Incoming 2
06:49 Incoming 4
06:53 North Dade Incoming 1
06:54 North Dade Incoming 1
06:54 Incoming 18
07:04 Incoming 1
07:12 Incoming 4
03/02/2012
12:45 Emergency 1
12:45 Incoming 1
12:47 Incoming 1
Sorry about the formatting, but it does help to have it pared down. Not all the calls have a origin/destination entered (all places were FL, I just left that off for brevity). If we accept what has been previously reported, that the times are Eastern, the girlfriend's calls are among those with no origin.
This is Trayvon's call log - on page 3 near the bottom it says "Welcome, tracy". I think we're seeing more than one search - first the calls the evening of 2/26 after 7 PM. Then the "Most recent activity" which ends with a choice of pages 1-5 with 1 being the active page. In fact, the text message listing may be part of a separate search since the header above it lists 135 text messages.
Then there is the Download Calls/Print Calls underneath which is the PST time notation that is confusing, followed by Your Usage History with a time frame that ends on 2/24 - that is not part of any of the calls in the logs since it does not include 2/26. I wonder if the previous search ended with the page listing and this snippet is part of an effort to see what was included in the Usage History?
I believe pages 6 and 7 are another search - page 7 is headed with All Recent History and by all rights, page 6 should follow it. If the order of those two pages are flipped, all the calls after 5 on 2/26 are listed in reverse order.
I agree with you that the PST notation on that one page is confusing, but if you look at this group of pages as being a number of different searches, that could possibly apply to only one of the searches.
IMO, JMO, etc.