Grandstream GXW42XX Quick User Guides User Manual
Grandstream Communication

Grandstream 
GXW Series FXS Gateway 
Quick User Guide 
 
Basic Phone Operation 
 
 
 
 
For detailed information please 
consult the GXW400X and GXW42XX Series 
User Manual available at: 
www.grandstream.com 
 
©2010 Grandstream Networks, Inc. All rights 
reserved. 
Reproduction or transmittal of the entire or any 
part, in any form or by any means, electronic or 
print, for any purpose without the express 
written permission of Grandstream Networks, 
Inc. is not permitted. Information in this 
document is subject to change without notice. 
Basic Features
In order to make calls, answer calls, and 
hold/resume calls, please refer to the User 
Manual of your analog phone. Usually there 
are two ways to end your digit input and dial 
out the number: 1) wait for time out 2) using 
“#” key. 
CALL TRANSFER
Assuming that you are in a call and wish to 
transfer the call to another party 
Blind Transfer:
1) Use “Flash” button on the analog phone 
to hold the current call. 
2) After dial tone is played, you can use star 
code 87 to make the transfer: press “*87” + 
the transfer target number. 
3) End your dialing with “#” or wait for time 
out. 
4) You will be disconnected after transfer is 
finished. 
Attended Transfer:
1) Use “Flash” button on the analog phone 
to hold the current call. 
2) After dial tone is played, you can input the 
transfer target number and dial out. 
3) After your transfer target answers, You 
can simply hang up your call, and the ATA 
will complete the transfer automatically. 
4) If your target does not answer the call, 
you can press “Flash” to resume the original 
call. 
3-WAY CONFERENCE
Assuming that you are in a call and wish to 
bring a third party into conference: 
1) Press “Flash” to hold the current call. 
2) After dial tone is played, you can input the 
third party’s number and dial out. 
3) If the third party answers, press “Flash” to 
bring both parties into the conference. 
4) If the third party does not answer the call, 
you can press “Flash” to resume the original 
call. 
5) If “Flash“ is pressed during conference, the 
third party will be dropped out. 
6) If you hang up you phone, the conference 
will be terminated for all three parties. If the 
“Transfer on Conference Hang-up” feature is 
enabled by your service provider, then after 
you hang up, the rest parties will still remain 
on the line for further conversation. 
Advanced Features
DND
To setup “Do Not Disturb”: 
1) Off-hook your phone. 
2) After hearing the dial tone, input “*78”, and 
follow by “#” or wait for time out. 
3) When DND is successfully enabled, you 
will hear dial tone again. Then you can hang 
up. 
To disable “Do Not Disturb”: 
1) Off-hook your phone. 
2) After hearing the dial tone, input “*79”, and 
then press “#” or wait for time out. 
3) When DND is successfully disabled, you 
will hear dial tone again. Then you can hang 
up. 
CALL FORWARD
Unconditional Forward:
All incoming calls will be forwarded.
1) Off-hook your phone. 
2) After hearing the dial tone, input “*72”+ 
forwarding number and follow by “#” or wait 
for time out. 
3) Wait for dial tone and hang up. 
4) Dial “*73” to cancel Unconditional Forward. 
Busy Forward:
Incoming calls will be forwarded when your 
phone is busy. 
1) Off-hook your phone. 
2) After hearing the dial tone, input “*90”+ 
forwarding number and follow by “#” or wait 
for time out. 
3) Wait for dial tone and hang up. 
4) Dial “*91” to cancel Busy Forward.
Delay Forward:
Incoming calls will be forwarded after ring time 
out without being answered. 
1) Off-hook your phone. 
2) After hearing the dial tone, input “*92”+ 
forwarding number and follow by “#” or wait for 
time out. 
3) Wait for dial tone and hang up. 
4) Dial “*93” to cancel Busy Forward. 
CALL RETURN
In order to call back to the latest incoming 
number. 
1) Off-hook your phone. 
2) After hearing the dial tone, input “*69”, and 
follow by “#” or wait for time out. 
3) Your phone will automatically call back to the 
latest incoming number. 
Note
All star code (*XX) related features are 
supported by ATA default settings. If your 
service provider provides different feature codes, 
please contact them for instructions. 
