user manual

Grandstream Networks, Inc. GXP21xx User Manual Page 33 of 41
Firmware version: 1.0.1.66 Last Updated: 05/2011
Authenticate ID
SIP service subscriber’s Authenticate ID used for authentication. It can be identical
to or different from SIP User ID.
Authenticate Password
SIP service subscriber’s account password for GXP21xx to register to (SIP) servers
of ITSP.
Name
SIP service subscriber’s name that is used for Caller ID display.
DNS Mode
The default is set to A Record. If user wishes to locate the server by DNS SRV,
the user may select SRV or NATPTR/SRV. When "Use Configured IP" option is
selected, if SIP server is configured as domain name, phone will not send DNS
query, but use "Primary IP" or "Secondary IP" to send sip message if at least one
of them are not empty.
Primary IP
This option applies only if “Use Configured IP” is selected, the phone will send DNS
query to the Primary IP. Insert IP address here.
Backup IP 1
Insert the first back up IP here.
Backup IP 2
Insert the second back up IP here.
SIP Registration
This parameter controls sending REGISTER messages to the proxy server. The
default setting is “Yes”.
Unregister on Reboot
Default is “No”. If set to “Yes”, the SIP user’s registration information will be cleared
on reboot.
Register Expiration
This parameter allows user to specify the time frequency (in minutes) that GXP21xx
refreshes its registration with the specified registrar. The default interval is 60
minutes. The maximum interval is 65,535 minutes (about 45 days).
Local SIP Port
This parameter defines the local SIP port used to listen and transmit. The default
value for Account 1 is 5060. It is 5062, 5064, 5066 for Account 2, Account 3 and
Account 4 respectively.
SIP Registration Failure
Retry Wait Time
Retry registration if the process failed. Default is 20 seconds.
SIP T1 Timeout
RFC 3261 SIP T1 timer. Default is 0.5 second.
SIP T2 Interval
RFC 3261 SIP T2 timer. Default is 4 seconds.
SIP Transport
Choose SIP Transport between UDP and TCP. Default is UDP.
Check Domain
Certificate
Enable to check the domain certificate. Default is “No”.
Remove OBP from
Route
The SIP Extension notifies the SIP server that it is behind a NAT/firewall.
Validate Incoming
Messages
This configuration selects whether or not the incoming messages should be
validated.
Support SIP Instance ID
Selects whether or not SIP Instance ID is supported.