So I deleted the handsets under 90-23 and then added a new extension under 11-02 to the ports but now the phones state not found extension no. I am not sure what I am doing wrong but it is not accepting a new extension.
I am trying to change an extension on a DT800 NEC phone I went into the SV9100 system and swapped the extension but the phone states duplicate extension. I tried Hard resetting the phone but it still has the same extension. Is there a way to assign the phone a new extension. My big issue is that...
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