Grandstream GXP1100 User Manual - Manual (Page 31)

FIRMWARE VERSION 1.0.8.4 GXP1100/GXP1105 USER MANUAL Page 29 of 53
primary SIP server fails.
Outbound Proxy
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.
Backup Outbound Proxy
Secondary Outbound Proxy which will be used when the primary proxy cannot
be connected.
SIP User ID
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.
Authenticate ID
SIP service subscriber's Authenticate ID used for authentication. It can be
identical to or different from the SIP User ID.
Authenticate Password
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.
Name
The SIP server subscriber's name (optional) that will be used for Caller ID
display.
Voice Mail User ID
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.
Account 1 -> Network Settings
DNS Mode
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 us e “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.
NAT Traversal This parameter configures whether the NAT traversal mechanism is activated.