May one answer Kaddish or Kedushah between putting on arm and head tefillin?

Synopsis

The Mechaber rules one should not speak to answer Kaddish or Kedushah; instead, one should remain silent, listen, and have intention. The Taz and Mishnah Berurah elaborate on whether answering would require a new blessing.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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