Nortel Networks 1000S - Manual (Page 31)

System architecture Page 31 of 44
Communication Server 1000S Overview
Software architecture
Centralized Automatic Software Upgrade
Centralized Automatic Software Upgrade allows a new version of software to
be automatically loaded on the MG 1000S after the Call Server software is
upgraded. To reduce service impact, a sequential upgrade mode upgrades
only one MG 1000S at a time.
Centralized upgrade
Centralized upgrade enables the IP telephony components (Voice Gateway
Media Cards) to be upgraded from the Element Manager interface. The
Element Manager host, the Signaling Server, is a file server for software
upgrade files for the Voice Gateway Media Cards. IP Phones also
automatically upgrade from a centralized file location (their TPS).
Centralized patching
Centralized patching enables IP telephony components, the Call Server, and
MG 1000S systems, to be patched from a central location through Element
Manager.
File uploading
File uploading enables software upgrade files and patches to be uploaded to
the Element Manager host, the Signaling Server, for centralized upgrading or
centralized patching. The file is uploaded from the management PC (web
browser) to the Element Manager host (web server).
Patching implementation
The Call Server, MG 1000S, Signaling Server, and the Voice Gateway Media
Cards are patchable. Installing a patch enables a fix to be delivered, without
requiring a new version of software.