Brit analysts were significantly involved in the phone work in May 2007.
Duarte is criticising (in part) experts from the Metropolitan Police.
Amaral's PJ and his Brit experts did analyse the phone data
Here is an example
The investigating authority would determine the priority of which data was to be analysed. As can be seen from the files that was concentrated on the first arguido and his associates and those who were later to be constituted arguidos and their associates.
I believe the present SY and PJ investigators may have carried out a more intensive study and may have looked at the information as a whole to see patterns which seem to have been of interest.
The first investigation concentrated on a narrow field ... unfortunately when that had to be discarded because it was unproductive ... they did not change tack to look at the information available to them as a whole.
Therefore the criticism of the Drs McCann lawyer is a valid one.
The PJ had the information provided by British technicians ... they just didn't use it to its full potential.