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Page 101

System Hardware

Inter-Tel

Axxess

Administrator Guide — Issue 11.0, May 2008

IP and SIP Endpoint Identification

At first glance, IP and SIP hard endpoints look nearly identical to digital endpoints. Additional

ports on the back of the endpoint, used for LAN and power connections, identify an endpoint

as an IP or SIP endpoint. IP and SIP endpoints operate like digital endpoints installed on the

system except for the limitations listed on page 101.

Installation and Configuration

To install and configure IP and SIP devices, you must know the required network settings and

be familiar with the associated hardware and software. For installation and configuration infor-

mation for all IP and SIP devices, refer to the IP Devices Installation Manual (part number

835.2195).

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 endpoint with v2.0.0 or later firmware uses a Trivial File Trans-

fer Protocol (TFTP) server to update a crucial internal boot code. In any of the following situa-

tions, the endpoint checks its configuration file against a corresponding file on the TFTP

server:

• On startup

• On command

• On periodic timeout

If the endpoint 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 endpoint display changes to alert you that the update

is in progress.

IP Limitations

Currently, IP devices (Session Initiation Protocol and Inter-Tel Protocol) have the following

limitations:

• They do not have a secondary voice path and cannot support off-hook voice announce

(OHVA).

• They do not support the enhanced speakerphone mode (feature code 310).

• They cannot use a PCDPM or MDPM.

• They do not support the DSS/BLF units.

CAUTION

If, during the boot code download, electrical current to the endpoint is interrupted (e.g.,

through disconnection or a power outage), the endpoint becomes inoperable and cannot be

recovered. In that event, the endpoint must be returned to Inter-Tel for repair.