Avaya one-X 1603SW, Administrator'S Manual, Page: 114 / 124

Administering Telephone Options
114 Avaya 1603SW-I SIP Deskphones Administrator Guide
where:
[2-4]xxx : Four-digit dial extensions, with valid extensions starting with 2, 3, or 4;
[68]xxx : Four-digit dial extensions, with valid extensions starting with 6 or 8;
*xx : Two-digit Feature Access Codes, preceded by a *;
9Z1xxxxxxxxxx : Network Access Code (“9 for an outside line”), followed by dial tone,
followed by any string of 10 digits– typical instance of Automatic Route Selection (ARS) for
standard US long distance number;
: Network Access Code (“9 for an outside line”), followed by dial tone, followed by
at least one digit – typical instance of Automatic Route Selection (ARS) for US access to
international numbers of unknown, and variable, length.
An additional parameter that affects dialing is:
COUNTRY - Country of operation for specific dial tone generation.
Setting the Date and Time on SIP IP Telephones
SIP IP telephones need a source of date and time information. This typically comes from a
network time server running the Simple Network Time Protocol (SNTP). The deskphones use
several administrative parameters for this functionality. The parameter SNTPSRVR defines the
server’s IP Address(es). GMTOFFSET defines the offset from Greenwich Mean Time (GMT).
DSTSTART and DSTSTOP define the start and end of Daylight Savings Time, respectively.
DSTOFFSET defines the Daylight Savings Time offset from Standard Time. Finally,
DATETIMEFORMAT defines the format of the date and time display. See
Table 11 for definitions
and valid values for SIP Date and Time parameters.
Failover/Failback Behavior
For survivability with the 1603SW-I SIP IP Deskphones, you can provision a list of controllers. If
more than one controller has been provisioned, the deskphone will attempt to register with the
highest-priority controller on the list. If there is a failure to register, the deskphone will then
attempt to register with the next controller on the list. Note that the deskphone will not failback
automatically. (The deskphone will continue to work with the failover controller.) If the
higher-priority controller becomes available, the deskphone must be manually rebooted or the
user must log out and log in again to attempt to register with the higher-priority controller.