Can't create 2200 extensions?

Discussion in '3CX Phone System - General' started by msnyder, Jul 27, 2017.

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  1. msnyder

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    I'm trying to create and extension for 2201 and I get the error:

    • Given DN number cannot be used
    Doesn't seem to be a system extension... Any ideas?
     
  2. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

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    Hello @msnyder

    what version PBX are you using? also is your PBX set to 4 digit extensions? can you create the 2202 extension or do you get the same error?
     
  3. leejor

    leejor Well-Known Member

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    Is there a SIP ID used somewhere that matches? What happens if you dial that extension number? Check the 3CX Activity log if the call appears to go somewhere.
     
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