Altigen IP 710, Administration Manual

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Troubleshooting
50 IP 710 Manual
IP phone registered then
goes back to Basic mode
•
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 IP 710 phone’s IP address.
•
Check the extension’s IP address in AltiAdmin to
find out 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 your DHCP server is
correctly configured.
•
Check if IP 710 phone’s IP address is configured.
One way connection
•
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.
Phone does not show
anything on LCD display
•
Check the power source to be sure the IP 710 phone
is receiving power.
Poor voice quality
•
Make sure a switch is used, rather than a hub, in the
corporate LAN.
•
G.711 provides better voice quality.
•
If VoIP is set up over WAN, set priority queuing on
the WAN router.
•
Make sure WAN QoS is okay by pinging a few
hundred packets from remote site and observe
packet loss and network latency.
•
Adjust jitter buffer to accommodate network
latency.