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I have too many HP 4120 IP Phones. But this phone was produced with Lync Firmware only. Lync is no longer used and I want to use these products with SIP Firmware. However, HP does not have a solution for this issue and does not respond to support requests.

As far as I know, HP Phones produce SNOM. Does this phone have compatible SIP Firmware?


emre ozcan

End user

Joined: 05.03.2022


  1. Hi,

    Unfortunately there is no SIP firmware for the HP 4120 phones, they were produced with a Lync firmware only and there is no way to revert them to "normal" SIP standards I am afraid.

    Thank you

    Gianmaria Tononi

    ​Technical Support Engineer

  2. End user emre ozcan

    thanks for the answer. Unfortunately, that means hundreds of products are garbage.