NEC SL1100, Networking Manual

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Issue 6.0 NEC SL1100
9 - 18 IP Multiline Station (SIP)
This can cause problems if, for example, a PoE (Power over Internet) switch is
used. When the PoE switch is powered up, all telephones connect to the FTP/
TFTP server at the same time. This causes a large amount of data for the
FTP/TFTP server to transfer over the data network.
To avoid this, connect the telephones to the PoE switch gradually, to allow
time for each telephone to upgrade before connecting the next.
To enable automatic upgrade:
1. Install and configure an FTP/TFTP server.
2. Copy the firmware file itlisipr.tgz to the default FTP/TFTP directory.
3. Set the server mode to FTP/TFTP in Program 84-07-01 and specify the
IP address of the FTP/TFTP server (this is the PC where the FTP/TFTP
software is installed) in Program 84-07-02.
4. In Program 84-28 program the Firmware Directory path on the FTP/
TFTP server and assign the file name (itlisipr.tgz).
5. In Program 90-42, assign the software and hardware versions. An
example of the hardware assignment would be 09.01.03.06, this is
Hardware Version 9.1.3.6.
S
ECTION
13
IP S
TATION
(SIP M
ULTILINE
T
ELEPHONE
)
13.1 Description
The NEC SL1100 system supports IP phones using Session Initiation Protocol
(SIP). These IP telephones have the same look and functionality as typical
multiline telephones, but they are connected to an VoIPDB card in the CPU
rather than hardwired to a Digital Station port.
Some of the benefits of an IP phone over a traditional TDM phone are
described in the following list:

Reduced telephone re-location costs. Unplug an IP telephone at one
location and plug it into another VoIP ready jack at another location. The
extension number can stay with the telephone, if programmed to do so.

Multiple users can share the same IP telephone but keep their own
personal extensions. With an IP phone you have the ability to log the
phone out, then log back in with another extension number. All of your
personal settings follow the login ID of your extension.