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Grandstream Networks, Inc. GXP21xx User Manual Page 39 of 48
Firmware version: 1.0.1.110 Last Updated: 01/2012
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).
Reregister Before
Expiration
This parameter allows user to specify the time frequency (in seconds) that
GXP21xx sends out a re-registration request before the Register Expiration. By
default is 0 second.
Local SIP Port
This parameter defines the local SIP port used to listen and transmit. The default
value for Account X is:
- Account 1: 5060
- Account 2: 5062
- Account 3: 5064
- Account 4: 5066
- Account 5: 5068
- Account 6: 5070
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, TCP and TLS/TCP. Default is UDP.
SIP URI Scheme when
using TLS
When TLS/TCP is used (in “SIP Transport”), select “sip:” or “sips:” in this mode.
Default is “sips:”.
Use Actual Ephemeral
Port in Contact with
TCP/TLS
Enable to use actual ephemeral port in contact with TCP/TLS. Default is “No”.
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.
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