I think there was so much edited out after that and there's no way to tell what info was/wasn't given during the calls.
I have listened to a few different versions of the 911 call and it is odd how my computer seems to be "buffering" at the same time during each version. In the more public versions, the grandmother's telephone number is obviously "bleeped" out. In all versions there are odd silences where critical information might have been given.
The two things that really stand out to me, is the time the mom said she saw baby A was "really early", (I assume LL said something like at 6:30 when I got up with SD). In the recordings that are currently available, the dispatcher repeated with 6:30 am. Something is missing there. How did the dispatcher get 6:30 out of "really early".
The other part is where the dispatcher asked about other adults in the household. It sounds like LL answers the question, but it is just a blank/buffering sound on my computer, with no real answer to the question. I think LL gave the name of the SD at that point, but it has been blanked out for the rest of it.
I find it interesting that they left the information about the bio dad in the call but seem to have blanked out any reference to the SD.
As for the whole bit about mom driving to look for the baby and not calling her mother until after the fact, that just looks suspicious to me. If the grandmother regularly stops in to take one or some of the children, wouldn't you call her right away to see if she has the child? I know I would.
If faced with this situation when my children were still small, the first thing I would do is do a quick run through the house and yard calling his or her name. If it was typical for my mother, sister, or friend to come by to take the kids out for a bit, I would probably call them. Then I would call the police. But...there would be less than 5 minutes from the time I realized my child was missing to the time I called the police.
While waiting for the police, I would be running around from neighbor to neighbor looking for the child. I would also enlist the help of the 9 and 11 year old to help in the neighborhood search at that point. Kids that age are old enough to run around the neighborhood calling a child's name.