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GXW42xx User Manual

Version 1.0.15.30

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)

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:

 STATUS: Displays the network status, account status, software version and MAC-address of the

phone

 MAINTENANCE: Basic settings such as basic network, date and time settings, and web/SSH

access settings can be set here.

 PROFILE - AUDIO SETTINGS: DTMF, Vocoder, and Analog Line settings can be configured here

for each port.

Grandstream Networks GXW4216 User Manual

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