Panasonic System KX-TA 824 System Features

Nortel Phone System

Nortel Norstar System

877-648-3532

www.nhtelecom.com

Norstar Modular 824 DR5 Software Nortel NT5B24DH-93

 

The Read Only Memory (ROM) section houses system software and is easily replaced when upgrading.


DR-5.1 ROM UPGRADE NTAB1638