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Changing Cisco 7911 to SIP

zak_falingepark
Level 1
Level 1

‎12-12-2012 03:59 AM - edited ‎03-16-2019 02:41 PM

Hi,

I am trying to change the Firmware to SIP on one of our Cisco 7911 Phones. I booted the phone and did the usual factory rest by pressing # then 123456789*0#

Now the phone tries to upgrade the firmware but then reboots.

What am i doing wrong please?

Thanks

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