Important Settings; Nat Settings; Dtmf Methods; Preferred Vocoder (Codec) - Grandstream Networks GXW400x User Manual

FXS
Port
1
2
3
4
5
6
7
8
4. Click Update after changing any setting and then Re-boot to confirm changes.
5. After reboot, check the Status Page to confirm the extensions are successfully registered. You
can now use your standard phones connected to ports FXS1 to FXS8 to make calls.
I S
MPORTANT ETTINGS
The end-user must configure the following settings according to the local environment.
NOTE: Most settings on the web configuration pages are set to the default values.

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. Use Random Ports (under Advanced 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.

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.

Preferred VOCODER (Codec)

The GXW400x 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)
•
iLBC
Grandstream Networks, Inc.
SIP User Auth ID Authentication
ID Password
601 601 ***
602 602 ***
603 603 ***
604 604 ***
605 605 ***
606 606 ***
607 607 ***
608 608 ***
GXW400x User Manual
Firmware 1.0.0.67
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Last Updated: 10/2007
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