Grandstream Networks WP810 Administration Manual page 38

Register Expiration
Subscribe Expiration
Reregister Before
Expiration
Enable OPTIONS Keep
Alive
OPTIONS Keep Alive
Interval
OPTIONS Keep Alive
Max Lost
Local SIP Port
SIP Registration
Failure Retry Wait
Time
SIP T1 Timeout
SIP T2 Timeout
SIP Transport
SIP Listening Mode

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.
Enable OPTIONS Keep Alive to check SIP Server.
Time interval for OPTIONS Keep Alive feature in Second.
Number of max lost packets for OPTIONS Keep Alive feature before the
phone re-registration.
Defines the local SIP port used to listen and transmit. The default value is
5060 for Account 1, 5062 for Account 2, 5064 for Account 3, 5066 for Account
4, 5068 for Account 5, 5070 for Account 6. The valid range is from 1 to 65535.
Specifies the interval to retry registration if the process is failed. The valid
range is 1 to 3600.
The default value is 20 seconds.
SIP T1 Timeout is an estimate of the round-trip time of transactions between
a client and server. If no response is received the timeout is increased and
request re-transmit retries would continue until a maximum amount of time
define by T2. The default setting is 0.5 seconds.
SIP T2 Timeout is the maximum retransmit time of any SIP request
messages (excluding the INVITE message). The re-transmitting and
doubling of T1 continues until it reaches the T2 value. Default is 4 seconds.
Determines the network protocol used for the SIP transport. Users can
choose from TCP, UDP and TLS. The default setting is "UDP".
Based on option "SIP Transport" and this option "SIP Listening Mode", phone
will decide which transport protocol it should listening to from the incoming
request. The default setting is "Transport Only".

Transport Only

Dual
WP810 Administration Guide
Version 1.0.1.1
P a g e | 38