TELES VoIP Box BRI Series, Reference Manual

Page: 202 / 226

9 Troubleshooting
VoIPBox DSL / VoIPBox BRI – version 21.0.009 Page 202
|
If layer 1 is still inactive, make sure that there is no
problem with the wiring. Check the ISDN cable pin
assignment. You can do so by looking at the cable colors
or by using a cable tester. Please refer to Chapter 3.4.1
on page 31
→
for the correct pin assignment.
|
Check the entry in the Layer 2 column. If the entry says
“MFE” (Multiframe established), the ISDN layer 2
signaling is working correctly. If not, open
pabx.cfg
and
check the port entries in the
Controller
/
Subscriber
line
for the correct connection type (TE/NT). Make sure that a
TE port is always connected to an NT port at the peer’s
side and vice versa. Please refer to Table 4.10 on page 67
→
and Table 4.11 on page 68
→
for an explanation.
9.2 No calls are possible
The system can be accessed but no calls are connected. There
can be a number of reasons for such behavior, mostly relating
to errors in the configuration.
To identify where your call problem originates, you need to
trace the call attempt. You can distinguish the following call
behaviors:
|
The call does not arrive on the gateway (please refer to
Chapter 9.2.1
→
).
|
The call arrives on the gateway, but is either rejected or
not routed to the right destination address (please refer
to Chapter 9.2.2
→
).
9.2.1 Call does not arrive on the gateway
If the trace of a failed call attempt shows that the call did not
arrive on the gateway, follow the troubleshooting suggestions
below.