User's Manual
GXV3240 User Manual 
GXV3240 WEB GUI 
Grandstream Co., Ltd 
Software Version:1.0.0.11 Document Version:0.1 
143 
Figure 138 GXV3240 Web GUI Account-Network Settings 
Table 13 Account/Network Settings Parameters 
Parameters 
Description 
Outbound Proxy   
IP  address  or  URL  of  the  Outbound  Proxy,  Media  Gateway,  or  Session  Border 
Controller. It's used by the phone for Firewall or NAT penetration in different network 
environments.  If  a  symmetric  NAT  is  detected,  STUN  will  not  work  and  ONLY  an 
Outbound Proxy can provide a solution.   
Secondary 
Outbound Proxy   
IP address or URL of the Secondary Outbound Proxy.   
DNS Mode   
This  parameter  controls  how  the  Search  Appliance  looks  up  IP  addresses  for 
hostnames.  There  are  three  modes:  A  Record,  SRV,  NATPTR/SRV.  The  default 
setting is "A Record". If the user wishes to locate the server by DNS SRV, the user 
may select "SRV" or "NATPTR/SRV".   
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