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  1. H

    Can NEC DT900 Work with 3CX, FreePBX, or Other SIP-Based PBX?

    Hi everyone, I have an NEC DT900 series IP phone, and I'm wondering if it can be configured to work with a SIP-based PBX like 3CX or FreePBX. I know that NEC phones are usually locked to their own PBX systems, but has anyone successfully used the DT900 with a third-party SIP server? If so...
  2. H

    Need Standard Sip Firmware For NEC DT900

    @belevedere could you please help please send Standard Sip Firmware For NEC DT900 my email : me@hayl.com @salimsajan if you got it please forward to me Thank you

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