526 Matrix ETERNITY NE System Manual
• Click the link Department Groups.
• Assign an Access Code to the department group against the Department Group Number. 
By default, the Access Codes assigned to Department groups are from 391 to 395.
If you decide not to use the default access codes, make sure that the access code you assign to each 
department group is unique, and does not match with any SLT, DKP, SIP, Door Phone, DOP access code 
or any feature access code of the Dial Phase. Refer the topic “Access Codes” to know more.