The password is case sensitive with maximum length of 25 characters. Only an administrator can access the “ADVANCED
SETTINGS”, “Profile 1~4”, and “FXS Ports” configuration pages.
Important Settings
The end-user must configure the following settings according to the local environment.
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 Advanced 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. NAT Traversal (under the Profile web pages)
Set this to Yes when gateway is behind firewall on a private network.
DTMF Methods
DTMF Settings are in Profile pages.
DTMF in-audio
DTMF via RTP (RFC2833)
DTMF via SIP INFO
You can enable set priority of DTMF methods according to your preference, from Priority 1 to 3. This setting should be based
on your server DTMF setting.
Preferred Vocoder (Codec)
The GXW42XX supports a broad range of voice codecs. Under Profile web pages, choose your preferred order of different
codecs:
PCMU/A (or G711µ/a)
G729
G723
G726 (16/24/32/40)
G722
iLBC
AAL2 (all G726)
PAGE DEFINITIONS
This section will describe the options in the Web configuration user interface. As mentioned, a user can log in as an
administrator or end-user.
Functions available for the end-user are:
Most settings on the web configuration pages are set to the default values.
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