IIRC one verbally called to her, one called her cell. Both were wanting her to come have lunch.
I don't think those two people are the 'sources' who keep changing their story and changing the times. Those two people aren't named, but IIRC, it's the homeowner and a co-worker. At least it looks like KGW got firsthand info from them. I don't know who the sources are, or if they even live in Oregon for that matter. I just know they keep changing their story and changing the times.
I believe Dede that she never left work. I think she just went off to work on a different area on the property, didn't hear the one person call to her verbally, and just didn't answer or didn't get the call/text from the other person.