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  1. M

    AVAYA 1603SW Firmware for SIP

    model ip phone 1603SW-I blk modelo /1603SW-I that's all it says
  2. M

    AVAYA 1603SW Firmware for SIP

    Maybe someone has the firmware for SIP protocol 1.3.4. The official website only has 1.0.1, but it doesn't want to flash to a phone with firmware 1.3.X.
  3. M

    AVAYA 1603SW Firmware for SIP

    Could you advise if it's possible to reprogram and use the AVAYA 1603SW as a standard SIP phone?

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