Operation Manual

Name Description
• Yes: To clear the information
If you enabled the auto login feature, the feature
takes precedence over any value set in this field.
Register Expiration Specifies the frequency in minutes in which the
deskphone refreshes registration with the specified
registrar. The maximum value that you can assign is
64800. The default value is 60.
Reregister before Expiration Specifies the frequency in seconds in which the
deskphone sends reregistration request before the
deskphone refreshes its registration. The default
value is 0.
SIP Registration Failure Retry Wait Time Specifies the interval in seconds in which the
deskphone retries registration if the registration
process fails. Assign any value in the range of 1 to
3600. The default values is 20.
SIP T1 Timeout Specifies the SIP T1 timeout, which is an estimate of
the round-trip time (RTT) of transactions between the
deskphone and the SIP server. The default is 0.5
seconds.
SIP T2 Timeout Specifies the SIP T2 timeout, which is the maximum
retransmit interval for non-INVITE requests and
INVITE responses. The default setting is 4 seconds.
SIP Transport Specifies the network protocol that the deskphone
uses for the SIP transport. Select from the following
options:
• TCP
• TLS/TCP
SIP URI Scheme When Using TLS Specifies the SIP URI scheme that the deskphone
uses when you select TLS/TCP as the SIP transport.
Select from the following options:
• sip
• sips
Note:
In case of TLS registration, you must select sip
so that the deskphone can register and make or
receive calls behind Avaya SBCE (Session
Border Controller for Enterprise) over TLS.
Use Actual Ephemeral Port in Contact with
TCP/TLS
Specifies whether the deskphone uses the actual
ephemeral port in contact when you select TLS/TCP
Table continues…
Configuring the accounts SIP settings
January 2016 Administering Avaya E129 SIP Deskphone 23
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