User's Manual
Table Of Contents
- CHANGE LOG
- GUI INTERFACE EXAMPLES
- WELCOME
- PRODUCT OVERVIEW
- CONFIGURATION GUIDE
- UPGRADING AND PROVISIONING
- RESTORE FACTORY DEFAULT SETTINGS
- EXPERIENCING GXP1760/GXP1780/GXP1782
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GXP17xx Administration Guide 
(All)--Off 
Call Forward Busy--On 
Configures Call Forward Busy feature code to activate busy call forwarding. 
Call Forward Busy--Off 
Configures  Call  Forward  Busy  feature  code  to  deactivate  busy  call 
forwarding. 
Call Forward Delayed 
(No Answer)--On 
Configures  Call  Forward  Delayed  feature  code  to  activate  no  answer  call 
forwarding. 
Call Forward Delayed 
(No Answer)--Off 
Configures  Call  Forward  Delayed  feature  code  to  activate  no  answer  call 
forwarding. 
Delayed  Call  Forward 
Wait Time 
Defines the timeout (in seconds) before the call is forwarded on no answer. 
The default value is 20 seconds. The valid range is 1 to 120. 
Settings Page Definitions 
Table 7: Settings Page Definitions 
Settings  General Settings 
Local RTP Port 
This parameter defines the local RTP port used to listen and transmit. It 
is the base RTP port for channel 0. When configured, channel 0 will use 
this port _value for RTP; channel 1 will use port_value+2 for RTP. Local 
RTP  port  ranges  from  1024  to  65400  and  must  be even.  The  default 
value is 5004. 
Use Random Port 
When set to "Yes", this parameter will force random generation of both 
the  local SIP and  RTP  ports.  This  is usually necessary  when multiple 
phones are behind the same full cone NAT. The default setting is "Yes"   
Note: This parameter must be set to "No" for Direct IP Calling to work. 
Keep-alive Interval 
Specifies  how  often  the  phone  sends  a  blank  UDP  packet  to the SIP 
server in order to keep the "ping hole" on the NAT router to open. The 
default setting is 20 seconds. The valid range is from 10 to 160. 
Use NAT IP 
The NAT IP address used in SIP/SDP messages. This field is blank at 
the default settings. It should ONLY be used if it's required by your ITSP. 
STUN Server 
The IP address or Domain name of the STUN server. STUN resolution 
results  are  displayed  in  the  STATUS  page  of  the  Web  GUI.  Only 
non-symmetric NAT routers work with STUN. 
Public Mode 
Configures to turn  on/off the public mode for  hot desking feature. The 
default setting is “No”. 
Settings  Call Features 
Off-hook Auto Dial 
Configures a User ID/extension to dial automatically when the phone is 
off  hook.  The  phone  will  use  the  first  account  to  dial  out.  The  default 










