Calling - Polycom VSX 3000 Administrator's Manual

Administrator's Guide for the VSX Series

Calling

Symptom
Error message occurs
when placing an IP (H.323)
call.
System displays a
message indicating network
congestion when placing an
ISDN call immediately after
starting the system.
The call is dialed as voice
over ISDN when using the
Recent Calls list to recall an
analog or cell phone from a
previous POTS call.
12 - 8
Problem
The system is not
connected to the LAN.
The system's LAN cable is
bad.
The far site is not
connected.
The system is not
configured correctly for the
network.
The IP
Gateway/Gatekeeper is not
operating or is not
configured correctly.
Calls do not connect.
If you are unable to place
calls to known sites on your
network, a gatekeeper
might be blocking calls from
unregistered systems.
This can occur if the system
uses a PRI E1 network
interface module that is
connected to an Adtran
Atlas 800 Plus module.
After power on, the Adtran
module must complete
channel restarts before the
system can complete ISDN
calls.
VSX 8000: ISDN Voice is
listed ahead of Analog
Phone in the Call
Preference dialing order.
Corrective action
Verify that the LAN cable is connected properly.
Replace the system's LAN cable.
Use the PING test (System > Diagnostics >
Network > PING) to determine whether the far site is
accessible to your system. If the test fails, the far site
system is unavailable.
Check your IP configuration.
Contact the gatekeeper/gateway administrator.
Use the PING test (System > Diagnostics >
Network > PING) to determine whether the far site is
an H.323 device.
If it is not an H.323 device and you are sure the IP
address is correct, it is likely that address is not on
your network. This is especially true with addresses
beginning with 10., 168.254, 172.16 through 172.31,
or 192.168, which are private networking addresses.
Register with the gatekeeper.
Wait about three minutes and try the call again.
Set Analog Phone ahead of ISDN Voice in the Call
Preference list.