3Com NBX 100 Administrator's Manual page 109

Table 22 VTL Errors and Corrections (continued)
Error Condition
After you finish dialing a VTL call, you get a busy
signal and the message "All ports busy" appears in
the telephone display panel.
After you finish dialing a VTL call, you get a busy
signal and the message "Invalid Number" appears in
the telephone display panel.
No audio
Caller ID information does not appear correctly in
the telephone display panel.
Possible Causes
1. No VTL license installed.
2. VTL device extensions not
added to Extension List
*0006.
3. All local VTL connections
are currently in use.
4. All VTL connections at the
remote site are currently in
use.
1. Local dial plan is not
properly configured.
2. Dial plan on the remote
(target) system in not properly
configured.
3. You are trying to use
hop-off without the necessary
password.
1. Telephones are not
configured to use either IP
On-the-Fly or Standard IP.
2. VTL Audio compression is
supported on only one of the
two NBX systems.
3. 3C10165D E1 and
3C10116D T1 Digital Line
Cards do not have static IP
addresses.
1. Invalid local pretranslator.
2. VTL extensions are not in
the VTL pretranslator "Devices
Using" table.
Using a VTL Password
Actions
1. Verify that the licenses
appear when you access the
tab.
2. Verify that the *0006
extension contains the VTL
device extensions.
3. On the Virtual Tie Line tab,
verify that there is at least one
idle VTL connection.
4. Use the Query Remote
function to verify that there is
at least one idle VTL
connection.
1. Examine the local dial plan
for errors.
2. Examine the dial plan on
the remote system for errors.
3.Verify that the password for
the remote system is used in
both dial plans.
1. Verify that the IP setting in
the System Settings,
System-wide dialog box is "IP
On-the-Fly" or "Standard IP."
Change the setting, if
necessary.
2. Verify that audio
compression is enabled on
both systems.
3. If your NBX system is set up
for IP-On-the-Fly, verify that
3C10165D E1 and 3C10116D
T1 Digital Line Cards have a
static P address. These cards
cannot receive an IP
On-the-Fly address.
1. Examine the local dial plan
for pretranslator errors.
2. Verify that VTL extensions
appear in the left-hand table
for the pretranslator.
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