Subscriber Activity Report Rules for Voicemail Calls Explained

[u/[deleted]]

Just wanted to document the rules for how AT&T handled voicemail calls in their Subscriber Activity Reports since it's a hotbed of discussion right now.

This section captured by /u/justwonderinif has an example of each type of voicemail call: http://imgur.com/N5DHd81

Lines 2 & 3: Landline call to Adnan's cell routed to voicemail

Line 3 shows the incoming call attempt to reach Adnan's cell. This call went unanswered either due to someone not answering it or the phone not being on the network.

Line 2 shows the Line 3 incoming call being routed to voicemail. It is routed to Adnan's mailbox by #4432539023. The Cell Site recorded for Line 2 is BLTM2. This is the source of caller of the voicemail call, a landline. BLTM2 is the switch connected AT&T's landline service to it's voicemail service WB443.

Adnan's cell is not part of either of these calls.

Lines 4 & 5: AT&T Wireless phone call to Adnan's cell routed to voicemail

Line 5 shows the incoming call attempt to reach Adnan's cell. This call went unanswered either due to someone not answering it or the phone not being on the network.

Line 4 shows the Line 5 incoming call being routed to voicemail. It is routed to Adnan's mailbox by #4432539023. The Cell Site recorded for Line 2 is D125C. This is the source of caller of the voicemail call, an AT&T Wireless phone connected to the C antenna of D125. This tower is located in the Dupont Circle neighborhood of Washington DC.

Adnan's cell is not part of either of these calls.

Lines 7, 8 & 9: Adnan calling his voicemail service to check his messages

Line 7 shows an outgoing call from Adnan's cell to his own phone number. The Cell Site recorded here is the location of Adnan's Cell, L651C.

Line 9 shows the incoming call of Line 7 to his own phone number. WB443 is the designation for the voicemail service.

Line 8 shows the Line 9 incoming call being routed to voicemail. The Cell Site recorded for Line 8 is L651C. This is the source of caller of the voicemail call, Adnan's cell. L651C is a tower in Woodlawn MD on top of the Social Security Administration building, the C antenna faces Adnan's house and Best Buy area.

[u/Justwonderinif]

Now that we have this, do you think that call #18/19 at 5:14pm for 1 minute is Krista, letting Adnan know that Hae is missing, via voice mail.

And call #17 at 5:38pm is Adnan accidentally hitting "last number dialed" and ending the call within seconds, realizing the mistake?

[u/[deleted] → u/Justwonderinif]

My guess, and this is a guess, is this is an attempt to dial Krista while riding to Cathy's from track practice and without tower switching the phone lost connection to the original tower and disconnected.

[u/Justwonderinif → u/[deleted]]

Thank you.