Grandstream Networks, Inc. GXW-400x User Manual Page 17 of 31
Firmware 1.0.0.17 Last Updated: 12/2006

CALL FEATURES
The GXW–400x supports traditional and advanced telephony features. These features are easy to use
with any phone.
TABLE 6: CALL FEATURES TABLE (STAR CODE)
Key Call Features
*23 3-way Conferencing
*30 Block CallerID (for all-config change)
*31 Send CallerID (for all-config change)
*67 Block CallerID (per call)
*82 Send CallerID (per call)
*50 Disable Call Waiting (for all-config change)
*51 Enable Call Waiting (for all-config change)
*70 Disable Call Waiting (Per Call)
*71 Enable Call Waiting (Per Call)
*72 Unconditional Call Forward: Dial “*72” for a dial tone. Dial the forwarding number
followed by ���#”. Wait for dial tone and hang up. (dial tone indicates successful forward)
*73 Cancel Unconditional Call Forward: Dial “*73” and wait for dial tone, then hang up.
*87 Blind Transfer
*90 Busy Call Forward: Dial “*90” for a dial tone. Dial the forwarding number followed by
“#”. Wait for dial tone then hang up.
*91 Cancel Busy Call Forward: dial “*91”. Wait for dial tone. Hang up.
*92 Delayed Call Forward: Dial “*92” for a dial tone. Dial the forwarding number followed
by “#”. Wait for dial tone then hang up.
*93 Cancel Delayed Call Forward: Dial “*93” for a dial tone, then hang up.
Flash/Hook If user hears call waiting beep, flash/hook will switch to the new incoming call. Also
used to switch to a new channel for a new call.

PSTN PASS THROUGH/LIFE LINE

The RJ-11 line jack on the GXW–400x side will function as a pass through jack when GXW–400x is out of
power. The pass through/life line enables the user to use the analog phone for PSTN calls directly
without using an access code.

T.38 FAX SUPPORT

GXW–400x supports fax in two modes: 1) T.38 (Fax over IP) and 2) fax pass through. T.38 is the
preferred method because it is more reliable and works well in most network conditions. If the service
provider supports T.38, please use this method by selecting T.38 as fax mode (default). If the service
provider does not support T.38, pass-through mode may be used. To send or receive faxes in fax pass
through mode, users must select all the Preferred Codecs to be PCMU/PCMA (G.711-u/a).

End User Configuration

Once this HTTP request is entered and sent from a Web browser, the GXW–400x will respond with a
login screen. There are two default passwords for the login page:
User Level: Password: Web pages allowed:
End User Level 123 Only Status and Basic Settings
Administrator Level admin All pages can be browsed.