/usr/share/doc/gammu-doc/html/protocol/ is in gammu-doc 1.39.0-1.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/gammu-doc/html/protocol/carkit.html
/usr/share/doc/gammu-doc/html/protocol/discovering.html
/usr/share/doc/gammu-doc/html/protocol/gnapplet.html
/usr/share/doc/gammu-doc/html/protocol/index.html
/usr/share/doc/gammu-doc/html/protocol/m-obex.html
/usr/share/doc/gammu-doc/html/protocol/mtk.html
/usr/share/doc/gammu-doc/html/protocol/n6110.html
/usr/share/doc/gammu-doc/html/protocol/n6510.html
/usr/share/doc/gammu-doc/html/protocol/n7110.html
/usr/share/doc/gammu-doc/html/protocol/nokia-s40-sms.html
/usr/share/doc/gammu-doc/html/protocol/nokia.html
/usr/share/doc/gammu-doc/html/protocol/s60.html
/usr/share/doc/gammu-doc/html/protocol/samsung-gt.html
/usr/share/doc/gammu-doc/html/protocol/samsung.html
/usr/share/doc/gammu-doc/html/protocol/sonim.html
/usr/share/doc/gammu-doc/html/protocol/tdma_5120.html