VoIP hardware is developing fast - this is where you ask all those “how do I make my SIP Telephone, Adapter or Asterisk box work with my voip provider?” questions.
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By nwphoto
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I am trying to convert an openstage 40 phone with HFA firmware to SIP firmware.

I am struggling to do the update.

I can see that depending on the installed firmware I might need to go to V2 before going to V3.

So how do I check the firmware version - either via the Web GUI or on the phone?

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By WelshPaul
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As you have concluded, one needs to figure out what software version the phone is running and upgrade in stages to the final release.
Try looking at the following web GUI page: Administrator Pages > General information.

Are you unable to flash V2 R2.48.0? If so, what error are you seeing and what version(s) have you tried to flash thus far?

The following threads/topics may be of some help to you:
Firmware needed / Update Problem: Openstage 60 with firmware: V1 R2.2.63 SIP
Siemens OpenStage 40 sip firmware
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