COMfortel 1400 IP/2600 IP/3600 IP - Firmware V2.8 - Advanced Information - V02 06/2017
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Settings
Providers and PBXs
Desactivado
: NAT traversal is not performed by the provider/PBX. The
router, which connects the Local Area Network with the Internet, should be
a properly functioning, SIP-aware router which performs NAT traversal.
Activado con uso de STUN
: NAT traversal is performed by the
provider/PBX. To do this, you must also specify a STUN server.
STUN server
A STUN server provides subscribers on a private network information on
request. This information includes the IP address and port outside their
private network that is considered as the source of their data. This infor-
mation is entered in the requests, instead of the actual private IP address/
port.
IP/URL del servidor STUN
Enter STUN server IP/URL.
Puerto del servidor STUN
(1...65535)
Enter STUN server port.
STUN server query interval (min)
(1...60)
Enter interval.
Requirements:
•
Set DNS server
Note:
If there are problems with unilateral call connections, enabling the
RTP might help.
Important:
Each port forwarding is a security risk. For this reason, we
recommend you use this function only if absolutely necessary.
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