User`s guide

Troubleshooting
Common problems and their solutions
MultiVoice Gateway for the MAX— User’s Guide Preliminary November 23, 1998 A-13
The MultiVoice Gateway cannot dial out on a T1 or E1 line
To verify that a profile is correctly configured:
1 Make certain that you have entered the correct phone number to dial.
2 Verify that the Data Svc parameter specifies a WAN service available on your line.
If you request a WAN service that is not available on your line, the WAN rejects your
request to place a call.
3 Check whether the channels using the requested WAN service are busy.
If these channels are busy, an outgoing call might be routed to channels for which you did
not request the specified WAN service. Check the Data Svc, Call-by-Call, and PRI # Type
parameter values in the profile.
No Channel Avail error message
If the error message No Channel Avail appears in the Message Log display when the
MultiVoice Gateway tries to place a call, check the Line profile configuration. This message
can also indicate that the lines’ cables have been disconnected or were installed incorrectly.
Hardware configuration problems
If you cannot communicate with the MultiVoice Gateway through the VT100 control terminal,
you might have a problem with terminal configuration, the control port cable, or the
MultiVoice Gateway hardware.
Cannot access the VT100
If no data is displayed on the VT100, verify that the unit successfully completes all of the
power-on self tests. Proceed as follows:
1 Verify that the MultiVoice Gateway and your terminal are set at the same speed.
2 Locate the LED labeled Fault.
3 Switch on the MultiVoice Gateway.
The Fault LED should remain off except during the power-on self tests. If you are using the
VT100 interface, press Ctrl-L to refresh the screen.
If the Fault LED remains on longer than a minute, there is a MultiVoice Gateway hardware
failure. A blinking Fault LED also indicates a hardware failure. Should these situations arise,
contact Ascend Customer Support.
Fault LED is off but no menus are displayed
If the unit passed its power-on self tests and you still cannot communicate with the vt100
interface, press Ctrl-L to refresh the screen. If you still do not see any data, check the cabling
between the MultiVoice Gateway and your terminal as follows:
1 Check the pin-out carefully on the 9-pin cable.
The control terminal plugs into the HHT-VT100 cable or the 9-pin connector labeled
Control on the back of the MultiVoice Gateway. If you are connecting to an IBM PC-like
9-pin serial connector, a straight-through cable is appropriate. Otherwise, you might need
a 9-to-25 pin conversion cable.