Spoofing a call is altering the calling party number, ie., the caller id. This would show as a call from X on the called party phone, however the landlline would not have a call detail record for this call. I am certain that the provider for the landline has call detail records for local calls. Therefore, I believe, that the call from the landline must have been done via the redial function. Remember that BC claims to have called his cell phone from the landline in order to locate his cell phone. After this any redial will call his cell phone. Being inclined one could construct a device that will depress the redial button based upon a timer expiring. If this is the case, and it is possible, then this would be very hard to prove that BC made the call himself from the landline. The difficulty is removed from proving this if the call detail record for the landline and the cell phone show different durations for the call. BC would terminate the call from his cell phone, the landline phone would see be offhook, duration incrementing and at some short time later the landline would play reorder tone (fast busy). I tried this on my home phone and the duration of the call on the landline kept incrementing. I think the call detail records may become very important to this case.
