Grandstream Networks GXP1100 User Manual page 31

Outbound Proxy
Backup Outbound Proxy
SIP User ID
Authenticate ID
Authenticate Password
Name
Voice Mail User ID
Account 1 -> Network Settings
DNS Mode
NAT Traversal
FIRMWARE VERSION 1.0.8.4
primary SIP server fails.
IP address or Domain name of the Primary 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 which will be used when the primary proxy cannot
be connected.
User account information, provided by your VoIP service provider (ITSP). It's
usually in the form of digits similar to phone number or actually a phone
number.
SIP service subscriber's Authenticate ID used for authentication. It can be
identical to or different from the SIP User ID.
The account password required for the phone to authenticate with the ITSP
(SIP) server before the account can be registered. After it is saved, this will
appear as hidden for security purpose.
The SIP server subscriber's name (optional) that will be used for Caller ID
display.
Allows you to access voice messages by pressing the MESSAGE button on
the phone. This ID is usually the VM portal access number. For example, in
Asterisk server, 8500 could be used.
This parameter controls how the Search Appliance looks up IP addresses for
hostnames. There are four modes: A Record, SRV, NATPTR/SRV, Use
Configured IP. 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". If "Use
Configured IP" is selected, please fill in the three fields below:

Primary IP: The primary IP address where the phone sends DNS query
to;

Backup IP 1;

Backup IP 2.
If SIP server is configured as domain name, phone will not send DNS query,
but use "Primary IP" or "Backup IP x" to send SIP message if at least one of
them are not empty. Phone will try to use "Primary IP" first. After 3 tries without
any response, it will switch to "Backup IP x", and then it will switch back to
"Primary IP" after 3 re-tries.
If SIP server is already an IP address, phone will use it directly even "User
Configured IP" is selected.
This parameter configures whether the NAT traversal mechanism is activated.
GXP1100/GXP1105 USER MANUAL Page 29 of 53