2N BRI Lite/Enterprise v1.3 User Manual

Page 53

SIP registration

Registration expires [s] – set the expiration time for the

gateway

2N BRI

registration data with SIP proxy.
Reattempt registration [s] – set the time interval after which the request shall be
resent.
Registration domain (realm).
Caller ID.
Username – registration data with SIP proxy.
Password – registration data with SIP proxy.

Voice parameters

First RTP port (even: 1024 – 65524) – set the number of the first RTP port. The
RTP port number must be even according to the recommendation.
Last RTP port (even: first RTP+10 – 65534) – set the number of the last RTP
port. The RTP port number must be even according to the recommendation. The
recommended minimum RTP port range is 10.

Codecs settings

Set details for the G.711a/u or G.729 codecs.

Codecs priority

Set the types of the speech codecs to be preferred.

Priority 1
Priority 2
Priority 3

IP addresses

SIP proxy (IP–>GSM) the SIP proxy IP address from which

gateway

–

2N BRI

awaits the GSM outgoing call requests.

Tip

If you keep the default values (0.0.0.0),

gateway will

2N BRI

receive requests from any IP address.

SIP proxy (GSM–>IP) – the SIP proxy IP address to which

gateway

2N BRI

turns 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.