Altigen Alti-IP 600 Administration Manual page 48

Troubleshooting
Image update failed. If
setting Boot
Download to YES,
after the phone reboots
and if the setting still
says YES, the boot
failed.
IP Phone registered
then goes back to Basic
mode
No IP Address
One way connection.
Phone does not show
anything on LCD
display.
36 Alti-IP 600 Administration Manual
• Check the Alti-IP 600 phone's IP address,
network, default gateway settings.
• Check the network connection.
• Check the TFTP server IP address and make
sure the TFTP server is running.
• PING from the TFTP server to the Alti-IP 600.
• Check to make sure app_mid.bin and dsp.bin
files exist in TFTP server directory.
• Check network connectivity by pinging from
AltiServ to the IP Phone.
• Check if IP Phone Service is running.
• Check if there is a duplicate IP address by
unplugging the Ethernet cable on the IP Phone,
then pinging the Alti-IP 600 phone's IP
address.
• Check the extension's IP address in AltiAdmin
to find out if another user is trying to login
using the same extension number.
• Use #27 + ENTER to login again and see if
problem persists.
• Check if DHCP is enabled. If YES, check
network connection. If NO, check DHCP
Server setting.
• Check if Alti-IP 600 phone's IP address is
configured.
• Make sure firewall setting has all the TCP/
UDP ports required by AltiWare opened.
• If NAT is used, make sure NAT is enabled and
NAT address is set up correctly.
Check the power source to be sure the Alti-IP 600
phone is receiving power.