Grandstream Networks GRP2601 Administration Manual page 39

Essential ip phones
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UNREGISTER on
Reboot
REGISTER Expiration
SUBSCRIBE
Expiration
Re-Register before
Expiration
Registration Retry
Wait Time
Add Auth Header on
Initial REGISTER
Enable OPTIONS Keep
Alive
OPTIONS Keep Alive
Interval
OPTIONS Keep Alive
Max Lost
SUBSCRIBE for MWI
SUBSCRIBE for
Registration
Allows the SIP user's registration information to be cleared when the phone
reboots. The SIP REGISTER message will contain "Expires: 0" to unbind the
connection. Three options are available: The default setting is "No".
If set to "All", the SIP user's registration information will be cleared when
the phone reboots. The SIP Contact header will contain "*" to notify the
server to unbind the connection.
If set to "Instance", the SIP user will be unregistered on current phone
only.
If set to "No", the phone will not unregister the SIP account when
rebooting.
Specifies the frequency (in minutes) in which the phone refreshes its
registration with the specified registrar. The default value is 60 minutes.
The maximum value is 64800 minutes (about 45 days).
Specifies the frequency (in minutes) in which the phone refreshes its
subscription with the specified registrar. The maximum value is 64800 (about
45 days). The default value is 60 minutes.
Specifies the time frequency (in seconds) that the phone sends re-
registration request before the Register Expiration. The default value is 0.
Specifies the interval to retry registration if the process is failed. The valid
range is 1 to 3600. The default value is 20 seconds.
Add authorization Header on initial REGISTER from the first REGISTER
Enable OPTIONS Keep Alive to check SIP Server.
Default is "Disabled".
Time interval for OPTIONS Keep Alive feature in seconds.
Default is "30" seconds.
Number of max lost packets for OPTIONS Keep Alive feature before the
phone re-registration. Default is "3".
When set to "Yes", a SUBSCRIBE for Message Waiting Indication will be
sent periodically. The phone supports synchronized and non-synchronized
MWI. The default setting is "No".
When set to "Yes", a SUBSCRIBE for Registration will be sent out
periodically. The default setting is "No".
GRP260x Administration Guide
Version 1.0.1.18
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