Page 38 of 910 Description
553-3001-365 Standard 4.00 August 2005

Software delivery

IP Line 4.5 supports software delivery through the following formats:
1CompactFlash
2Signaling Server CD-ROM
3Download from the Nortel web site
Note: Stand-alone IP Line 4.5 software is not available through
CD-ROM.
2If the primary Signaling Server fails, the backup Signaling Server takes over and
all IP Phones register with the backup Signaling Server.
3If the backup Signaling Server fails, one of the Voice Gateway Media Cards is
elected to be the node Master.
4The IP Phones then register to the Voice Gateway Media Cards.
Without a backup Signaling Server
1If there is no backup Signaling Server, and the primary Signaling Server fails, one
of the Voice Gateway Media Cards is elected to be the node Master.
2The IP Phones then register to the Voice Gateway Media Cards.
Table 3
Methods of Signaling Server redundancy (Part 2 of 2)
Stage Description