Re: I looked and....
It seems that Mitel now loginwalls the software downloads, but someone has re-uploaded the 68xx models software, including sufficient evidence at; http://185.247.33.107/Firmware/Mitel/
Although, the 5320e software is not publicly available for download as the one download link I can find is dead.
They use GNU/Linux and that's a lot of copyright infringement;
strings 6869i.st |grep -i '\.so'
libanl.so.1
libbcm_crc32.so
glibc.so.6
libcsxsigmorph.so
libdl.so.2
flibecutils.so
libhalaudio.so
libnss_compat.so.2
libnss_dns.so.2
hlibnss_files.so.2
libnss_nisplus.so.2
libutil.so.1
libdecx170v.so
libidirectfbfont_dgiff.so
libidirectfbimageprovider_dfiff.so
libbcmringeth.so
libdl.so.2
iblog.so
libm.so.6
libthread_db.so.1
libusrlog.so
libidirectfbimageprovider_gif.so
ld-linux.so.3
ld.so.1
libamxr.so
libanl.so.1
libbacklight.so
libbcmringeth.so
libbsc.so
libbz2.so
libbz2.so.1.0.4
libbz2.so.1
libcidn.so.1
libcrc32.so
libcrypt.so.1
libcrypto.so
libcrypto.so.0.9.8g
libcrypto.so.0
libcrypto.so.7
libcrypto.so.0.9.8g
libdl.so.2
glibgcc_s.so.1
libgpio.so
libhalaudio.so
libi2c.so
libjpeg.so
Ilibjpeg.so.62.0.0
Zlibjpeg.so.62
9tlibjpeg.so.62.0.0
libjpeg.so.62.0.0
liblog.so
libm.so.6
libmmdma.so
libncurses.so.5
libnsl.so.1
libnss_compat.so.2
libnss_dns.so.2
hlibnss_files.so.2
libnss_hesiod.so.2
libnss_nis.so.2
libnss_nisplus.so.2
libota.so
rlibpthread.so.0
libresolv.so.2
librt.so.1
libssl.so.7
rlibssl.so.7
libstdc++.so.6
libstrl.so
1libthread_db.so.1
libtinfo.so.5
libutil.so
libutil.so.1
libvdecal.so
libz.so
libz.so.1
libz.so.1.2.3
libxt_standard.so
libcap.so.2
libdecx170h.so
libdecx170m.so
m5libdecx170v.so
libdwlx170.so
Z5vlibedit.so.0
libpcap.so.0.9
libpng12.so
hlibpng12.so.0.24.0
libpng12.so.0
libpng12.so.0.24.0
libppx170.so
libx170j.so