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12 Troubleshooting
VoIPBox BRI Version 18.0.002
Page 271
12.2.1
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.
Reasons
|
VoIP
: The firewall configuration in the
ip.cfg
blocks VoIP
traffic.
|
VoIP
: The global VoIP settings cause problems.
|
VoIP
: Authentication failed.
|
ISDN
: The ISDN port is not active.
Symptoms
|
The incoming call does not arrive on the gateway.
Solution
VoIP
: If a VoIP call does not arrive on the gateway, check your
firewall settings in the
ip.cfg
file. Consider the following:
|
Blocking all udp ports in your firewall causes SIP traffic to
be blocked as well. If you block all udp ports, make sure
to explicitly enable the SIP port, otherwise no SIP calls
will be connected. Make sure as well to keep the right or-
der: first enable the SIP port, then block all udp ports.
|
The same applies to RTP ports: if all udp ports are
blocked, the RTP ports need to be enabled first.
|
If the VoIP profile’s SIP proxy in the
route.cfg
has been
configured using the domain name, make sure that the
DNS port has been explicitly enabled in the firewall set-
tings if all udp ports are blocked. First enable the DNS
port, then block all udp ports.
|
Check that the ports have the correct numbers.
Содержание VoIPBox BRI
Страница 1: ...VoIPBox BRI Reference manual Software version 18 0 ...
Страница 16: ...1 Safety and security precautions ...
Страница 27: ...2 Overview ...
Страница 32: ...3 VoIPBox installation ...
Страница 49: ...4 Configuration files ...
Страница 101: ...5 Routing examples ...
Страница 119: ...6 System maintenance and software update ...
Страница 175: ...7 Signaling and routing features ...
Страница 203: ...8 Least cost routing ...
Страница 214: ...9 Online traffic monitor ...
Страница 226: ...10 Two stage dialing callback server functionality ...
Страница 238: ...11 Additional VoIP parameters ...
Страница 261: ...12 Troubleshooting ...