Manually Upgrading Firmware - NEC Univerge SV9100 Manual

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Due to the nature of analog-to-digital conversion, considerable echo may be

encountered when using Analog Trunks with IP Phones.

Due to all Analog trunks being different, padding of the Analog Trunks in PRG 81-07

and 14-01 may be necessary. Even after the pad changes are made, echo may still

be present the first few seconds of the call while the echo cancellers are learning the

characteristics of the circuit on this call.

Program 90-68-01 can be used to automatically test the lines and auto assign the

proper values in Program 81-07. It is recommended to use this program whenever

analog trunks are involved.

It is recommended to use digital trunks when using IP phones for best performance.

Digital (ISDN, T-1, and SIP) trunks do not suffer from this problem.

A new version of NEC firmware for the IP Phones can be applied automatically or

The upgrade requires using an FTP/TFTP server. This is a software package that

runs on a PC. (These can be downloaded from the Internet, usually as freeware or

14.1 Manually Upgrading Firmware

SV9100 Networking Manual

Manually upgrading the firmware uses an FTP/TFTP server, but requires the

engineer visit each IP Phone individually. This may take longer, but is more

controlled as the downloads can be staggered to avoid excessive bandwidth

utilization.

To manually upgrade the firmware:

Install and configure an FTP/TFTP server.

Copy the firmware file itlisip(e,s,v).tgz to the default FTP/TFTP directory.

To enter Programming Mode, press the Help button on the IP Phone.

To enter Maintenance Mode, press 0 (Config) and #3 (Maintenance).

To access the Download menu, press 1.

Enter the FTP/TFTP server IP address in Option 2 - Download Address.

To enter the protocol, press #3 (Protocol FTP or TFTP).