Dieter Wisliceny was an SS working under Eichmann for the RSHA, overseeing the Jewish deportations.
In the interrogation, when asked about what "annihilation camps" he knew about, Wisliceny was able to recall Auschwitz as well as Globocnik and "the notorious Maidenek Camp" (p.24). However, following that we read:
(p.26-7)A (...) In the immediate vicinity of Lublin there were several other such camps.
Q Do you know their names?
A No, because the designations for these transports always went by the name of Lublin. Maidenek too, was never mentioned by name, but was always referred to in the record by Camp M. It was only by accident that I learned one time that this Camp M was Maidenek
(...)
Q What was Camp T?
A If I correctly recollet(sic), that belonged to the complex Lublin system. I remember having heard the designation Camp T.
Q Was that also an annihilation camp?
A Yes, sir.
Now "Maidanek" was the unofficial name of the camp properly known as KZ Lublin. In all preserved German documentation, the camp goes by that designation, not "Maidanek". In the Hoffle telegram, Maidanek is referred to by using the inital "L", not "M". Also, correct me if I'm wrong, but Wisliceny's statement on the designation of "these transports" is also incorrect - the names of the Reinhardt camps were not avoided or camouflaged on transportation documents.
Later in the protocol, Wisliceny is once again asked about the "other annihilation camps":
(p.40)Q Were there others [=other annihilation camps in 1942]?
A As far as I can remember, there were none. Later, when everything was concentrated in Auschwitz, certainly in the period 1943-1944.
But as we know the Reinhardt camps were established in 1942 and liquidated in 1943.
Wisliceny on Auschwitz gassings:
(p.40)Q Do you know what methods were used to exterminate Jews at Auschwitz?
A As Eichmann told me in a conversation, they were killed in gas chambers with carbon monoxide gas.
However, this was the alleged method in the Reinhardt camps, not in Auschwitz.