GL-VP-620x User Manual
Copyright © 2009-2011 GigaLink
Page 23 of 45
7.3.1 NAT Settings
If you plan to keep the gateway within a private network behind a firewall, we recommend
using
STUN Server
. The following three (3) settings are useful in the STUN Server
scenario:
1.
STUN Server
(under Super Settings webpage)
Enter a STUN Server IP (or FQDN) that you may have, or look up a free public STUN
Server on the internet and enter it on this field. If using Public IP, keep this field blank.
2.
Use Random Ports
(under Super Settings webpage)
It really depends on your network settings, so set this parameter to Yes or No, whichever
works. Generally if you have multiple IP devices under the same network, it should be set
to Yes. If using a Public IP address, set this parameter to
No
.
3.
NAT Traversal
(under the Profile web pages)
Set this to
Yes
when gateway is behind firewall on a private network.
7.3.2 DTMF Methods
DTMF Settings are
in Profile pages
.
DTMF in-audio
DTMF via RTP (RFC2833)
DTMF via SIP INFO
Enable one or more DTMF methods based on your PBX system.
7.3.3 Preferred VOCODER (Codec)
The GL-VP-620x supports a broad range of voice codecs. Under Profile web pages,
choose your preferred order of different codecs:
PCMU/A (
or G711μ/a)
G729 A/B/E
G723
G726 (16/24/32/40)
7.4
End User Configuration
This section will describe the options in the Web configuration user interface. As