![]() ![]() 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.Use this parameter to configure the frequency of queries routed to the STUN server. Next STUN request (60–6553, 0=off) – update of information on the 2N ® BRI gateway public IP address. ![]() The pre–set port for sending requests to STUN is 3478. You are recommended to complete this field if 2N ® BRI gateway is installed in a private network separated from the Internet via NAT or firewall. STUN server – STUN server IP address (Simple Traversal of UDP through NATs (Network Address Translation)) for obtaining the public IP address with which 2N ® BRI gateway operates in the Internet.NAT firewall – NAT firewall IP address.The SIP proxy and SIP registrar IP addresses must be set to the default value (0.0.0.0). You can use the domain name Registration domain (realm) for the SIP proxy (IP / GSM), SIP proxy (GSM / IP) and SIP registrar IP addresses on condition that you complete the domain name Registration domain (realm) and set the DNS server address properly in the Web configuration / Ethernet configuration section.SIP proxy (IP / GSM) – the SIP proxy IP address from which 2N ® BRI gateway awaits the GSM outgoing call requests.Set the types of the speech codecs to be preferred. Set details for the G.711a/u or G.729 codecs. The recommended minimum RTP port range is 10. 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.First RTP port (even: 1024 – 65524) – set the number of the first RTP port. ![]()
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