Chapter 6
Troubleshooting
ViewStation FX/VS 4000 User’s Guide
158
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Network & Communication
Symptom
Cause
Solution
Error Message occurs
when dialing a video
call.
If H.320 call, the first line did not
connect. It cannot make a call if
the first line does not connect.
Check that all network cables are
properly connected. Restart the
system.
If H.323 call, IP Gateway/
Gatekeeper is not operating or is
not configured correctly.
Contact your network administrator.
ISDN: Line Status icons
do not go away so video
calls cannot be made.
ISDN line is not present.
Check the ISDN line connections.
The ViewStation has an S/T interface
and requires an NT1 to be connected
between the ViewStation and your
ISDN line, unless the ViewStation is
connected to a PBX. See below.
ISDN number entered incorrectly.
Check the ISDN numbers with your
service provider.
SPID numbers entered incorrectly.
Note: The AT&T point-to-point
protocol does not require SPIDs.
Reset the system by going to the
Reset menu under the Diagnostics
menu. Run Automatic SPID
detection again. Make sure your
ISDN numbers are entered correctly.
ViewStation is directly connected
to a U interface.
Install an NT-1 between your ISDN
line and the ViewStation ISDN
connection.
ISDN: Line Status icons
do not go away so video
calls can not be made.
The ViewStation is connected to
an NT1 then directly to a PBX. The
PBX connection is an S/T
interface.
You do not need an NT1 when
connecting to a PBX. Connect the
ViewStation directly to the PBX S/T
connection. You may need to use an
ISDN terminating resistor on the
ISDN line between your ViewStation
and the PBX.
Your ISDN line is provisioned
incorrectly by your service
provider.
The ViewStation will auto-detect
SPIDS for about 85% of all United
States and Canadian switches.
The ViewStation was not able to
detect your SPID.
Check that your ISDN line is
provisioned for Voice/Data, Voice
Data.
Check that your ISDN line is
provisioned for Voice/Data,
Voice/Data
Check with your ISDN service
provider and enter the SPIDs and
Switch Protocol manually. Note: The
AT&T point-to-point protocol does
not require SPIDs.
You may want to contact your ISDN
provider and ask them to switch your
line to the NI 1 protocol standard.
Содержание ViewStation FX
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Страница 14: ...Contents ViewStation FX VS4000 User s Guide xiv www polycom com ...
Страница 178: ...Chapter 6 Troubleshooting ViewStation FX VS 4000 User s Guide 164 www polycom com ...
Страница 196: ...Appendix C V 35 Technical Information ViewStation FX VS 4000 User s Guide 182 www polycom com ...
Страница 210: ...Appendix D PRI Technical Notes ViewStation FX VS 4000 User s Guide 196 www polycom com ...
Страница 212: ...Appendix E Frame Rate Specification For ViewStation FX VS4000 ViewStation FX VS 4000 User s Guide 198 www polycom com ...