Avaya 9600 Series Installing And Administering page 126

Failover and survivability
connection. You can provide the servers by using DHCP, LLDP, or the 46xxsettings.txt file
parameters SIP_CONTROLLER_LIST or SIP_CONTROLLER_LIST_2. Ideally, the full list of
servers must be provided. However, when a survivable server is location specific, you must only
include the survivable server in DHCP, LLDP or the 46xxsettings.txt file if the correct
survivable server for the location can be provided. This ensures that the phone always receives
the correct survivable server address. A DHCP server local to a branch is one such method in
which this could be done. However, if you cannot provide the correct location-specific survivable
server reliably in DHCP, LLDP, or the 46xxsettings.txt file, then you must not include it. In
this case, the phone gains access to it after login.
Dial Plan parameters for use when failing over to a proxy other than Avaya Aura
Parameter name
ENABLE_REMOVE_PSTN_ACC
ESS_PREFIX
PSTN_VM_NUM
INTER_DIGIT_TIMEOUT
ENABLE_REMOVE_PSTN_ACC
ESS_PREFIX
January 2020 Installing and Administering Avaya 9601/9608/9611G/9621G/9641G/9641GS IP
Default value Description
0 Enables the removal of the PSTN access prefix
from the collected dial strings when the phone
communicates with a non-AST controller.
Value operation:
• 0: PSTN access prefix digit is not removed.
• 1: PSTN access prefix digit is removed from the
collected digit string before formulating the
INVITE for delivery to the controller.
The parameter has no effect if you enable this
parameter when the phone communicates with an
AST-capable controller.
Null Specifies a phone number or Feature Access Code
to be used by the messaging application in a non-
Avaya or failover server environment. This dialable
string is used to call into the messaging system, for
example, when you press the Message Waiting
button.
5 Specifies the timeout that takes place when a user
stops entering digits. The timeout is treated as digit
collection completion, and when it occurs, the
application sends out an invite.
Valid values are from 1 to 10.
Enables the phone to perform digit manipulation
during failure scenarios. This parameter enables
removal of the PSTN access prefix from the
outgoing number.
Value operation:
• 0: PSTN access prefix is retained in the outgoing
number
• 1: PSTN access prefix is stripped from the
outgoing number.
Deskphones SIP
Comments on this document? infodev@avaya.com
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