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How to change a 3 digits unused dn to 4 digits

How to change a 3 digits unused dn to 4 digits

How to change a 3 digits unused dn to 4 digits

(OP)
I have to free up some DN'S numbers. I have those 3 digits unused DN: 791, 792, 793, 794, 795, 796, 797, 798, 799. I would like to free up the 7910 - 7909 so I could used them for some new phones numbers. Where can I do thoses changes?

RE: How to change a 3 digits unused dn to 4 digits

(OP)
I just find out that all I had to do was to actually create a new phone with DN 7910 even if its not in the LUDN prt. Easier than I though. Thx anyway!

RE: How to change a 3 digits unused dn to 4 digits

when you removed 791 you freed up 7910 to 7919 or any number beginning with 791, if you removed all the 790 to 799 then the LUDN that would show would be 79 meaning any number beginning 79 is free, if there was no other numbers in the 7xx range for example then the LUDN would be 7.

Unlike some PABX's the number length is not fixed in any way it just can't clash so you could have

790
7910 - 7919
792
793
79400 - 79499
7950
79510 - 79519
7952
etc.
but you couldn't have 791 and 7910 as they would clash.

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