Inter-Tel CS-5400 - Manual (Page 110)

Hardware and Endpoints
INTER-TEL
®
CS-5200/5400 ADMINISTRATOR GUIDE, ISSUE 1.1 – August 2005
Page 92 Automated Boot Code Update
Because IP phones connected on P2P calls do not use chassis resources, users cannot access
Agent Help, Record-A-Call, and Station Monitor features
.
To install and configure IP and SIP endpoints requires knowledge of appropriate network set-
tings and familiarity with the associated hardware and software. Installation and configuration
information for all IP and SIP endpoints should be referred an Inter-Tel-ceritfied service tech-
nician. For further information, contact your authorized Inter-Tel equipment provider.
Automated Boot Code Update
Information about the automatic update of endpoint boot code is included in this guide for the
following reasons:
•
You may be unaware that the update is occurring.
•
Interruption of power to the endpoint during the download causes the endpoint to be
inoperable and unrecoverable.
A Model 8620/8622 or 8662 phone with v2.0.0 or later firmware uses a TFTP server to update
a crucial internal boot code. In any of the following situations, the phone checks its configura-
tion file against a corresponding file on the TFTP server:
•
On startup
•
On command
•
On periodic timeout
If the phone detects new parameters during this check, it automatically initiates the boot update
procedure to download new boot code. However, the download is delayed if a call is in
progress or music on hold is enabled. The phone display changes to alert you that the update is
in progress.
NOTICE
Passing real-time streaming data, such as audio, through encrypted virtual private networks
(VPN) may significantly impact the network performance, router and firewall functionality, and
audio quality.
CAUTION
Severe phone damage possible. If, during the boot code download, electrical current to
the phone is interrupted (e.g., through disconnection or a power outage), the phone
becomes inoperable and cannot be recovered. In that event, the phone must be returned to
Inter-Tel for repair.