Programming instructions

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APPENDIX D - TRUNK DIRECTORY NUMBERS
APPENDIX D - TRUNK DIRECTORY NUMBERS
The DX-120 system supports one ISDN (T1/PRI) Board (PRI/B) and provides 23B channels (data transmitting) plus 1D
channel (control of data transmitting).
The default Trunk Directory Numbers for the DX-120 are assigned as follows:
Trunk Directory Number Cabinet / Slot / Port Trunk Type
800 ~ 803 1 / 1 / 1 ~ 4 4CO
804 ~ 807 1 / 5 / 1 ~ 4 4CO
808 ~ 811 2 / 1 / 1 ~ 4 4CO
812 ~ 815 2 / 5 / 1 ~ 4 4CO
816 ~ 838 1 / 7 / 1 ~23 ISDN (T1/PRI)
816 ~ 839 1 / 7 / 1 ~24 T1
FOR FUTURE USE ONLY
840 ~ 843 1 / 4 / 1 ~ 4 VOIP