2N BRI Lite/Enterprise v1.6 User Manual
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SIP proxy (GSM IP) – the SIP proxy IP address to which
gateway turns
2N BRI
®
in the case of GSM incoming calls.
SIP registrar – SIP registration server IP address.
NAT firewall – NAT firewall IP address.
STUN server – STUN server IP address (Simple Traversal of UDP through NATs
(Network Address Translation)) for obtaining the public IP address with which 2N
gateway operates in the Internet. You are recommended to complete this
BRI
®
field if
gateway is installed in a private network separated from the
2N BRI
®
Internet via NAT or firewall. The pre–set port for sending requests to STUN is
3478.
Next STUN request (60–6553, 0=off) [s] – update of information on the 2N
®
gateway public IP address. Use this parameter to configure the frequency of
BRI
queries routed to the STUN server.
Tones generated to VoIP
Ring tone to VoIP – enable generation of a user ring tone or transfer of the real
ring tone from the GSM/UMTS networks.
Tip
If you keep the default values (0.0.0.0),
gateway will receive
2N BRI
®
requests from any IP address.
Tip
You can use the domain name
for the
Registration domain (realm)
SIP
,
and
IP addresses
proxy (IP GSM)
SIP proxy (GSM IP)
SIP registrar
on condition that you complete the domain name Registration domain
and set the
properly in the
(realm)
DNS server address
Web
section. The
and
configuration
Ethernet configuration
SIP proxy
IP addresses must be set to the default value (0.0.0.0).
SIP registrar
Note
In case the GSM gateway is installed behind the NAT, make proper routing
settings in the NAT router for the relevant ports (SIP, RTP, STUN).
Integrated firewalls can also affect VoIP calls!
Tip
Should you have call troubles (such as unilateral audibility, connection
errors), make sure that all the active elements on the VoIP call route have
been set properly. For easy troubleshooting, try the point–to–point
connection with the software IP phone (SJ phone, e.g.) in your PC and, at
the same time, apply network analyzer tracing (WireShark –
Refer to
for easy tracing by the BRI gateway.