AltiGen IP 805 User Manual
Page 30
Troubleshooting
26 IP 805 User Manual
Problem/Symptom
Solution
MaxCS is unreachable
•
Make sure that the MaxCS IP address in the IP phone is set up
correctly.
•
Check the phone’s IP address, network mask and default gateway.
•
Make sure that you can ping the IP 805 phone’s address from
MaxCS.
•
Make sure that the IP Phone Service is started in MaxCS.
•
Check the MaxCS IP address in the AltiAdmin IP Phone
Configuration menu.
Image update failed. If setting
Boot Download
to Yes, after the
phone reboots and if the setting
still says Yes, the boot failed.
•
Check the phone’s IP address, network, default gateway settings.
•
Check the network connection.
•
Check the TFTP server IP address and make sure that the TFTP
server is running.
•
PING from the TFTP server to the IP 805.
IP phone registered then goes
back to Basic mode
•
Check network connectivity by pinging from AltiServ to the IP phone.
•
Check that the 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 phone’s IP address.
•
Ask the system administrator to check the extension’s IP address in
MaxCS Administrator, to determine if another user is trying to log in
using the same extension number.
•
Use #27 then Enter to log in again and see if the problem persists.
No IP Address
•
Check if DHCP is enabled. If YES, check network connection. If NO,
verify that your DHCP server is correctly configured.
•
Confirm that the phone’s IP address is configured correctly.
One way connection
•
Make sure firewall setting has all the TCP/UDP ports required by
MaxCS opened. See your system administrator.
Phone does not show anything on
LCD display
•
Check the power source to be sure the phone is receiving power.
Poor voice quality
•
A Layer 3 Managed Ethernet switch should be used, rather than a
hub or non-managed switch, in the corporate LAN. Check with your
system administrator.
•
G.711 provides better voice quality. Check with your system
administrator.
•
If VoIP is set up over WAN, priority queuing should be set on the WAN
router.
•
System administrator should make sure WAN QoS is okay by pinging
a few hundred packets from a remote site and observing packet loss
and network latency.
•
System administrator should adjust jitter buffer to accommodate
network latency.