-
Option 15: DNS Domain Name
. This string contains the domain name that the
system uses to resolve DNS names in system parameters into IP addresses. The
system appends this domain name to the DNS name before the IP Deskphone
resolves the DNS address. If you want to use a DNS name for the HTTP server,
Option 15 is required. Otherwise, you can specify a DOMAIN as part of customizing
HTTP. For more information, see
-
Option 43: Encapsulated vendor-specific options
. This option is used by the
deskphones and the DHCP servers to exchange vendor-specific information. The
following table lists the codes supported by the deskphones and the corresponding
46xxsettings
parameters:
Code
Parameter
1
Must be the first encapsulated parameter in Option 43
with a value of 6889.
Note:
Option 43 is processed only if the first code is 1
with a value of 6889, where 6889 is the
enterprise identifier.
2
HTTPSRVR
3
HTTPDIR
4
HTTPPORT
5
TLSSRVR
6
TLSDIR
7
TLSPORT
9
L2Q
10
L2QVLAN
11
PHY1STAT
12
PHY2STAT
13
PROCSTAT
14
SIG
16
MCIPADD
17
TLSSRVRVERIFYID
Note:
The deskphone sends DHCP option 60 with the value
ccp.avaya.com
.
-
Option 51: DHCP lease time
. If the deskphone does not receive this option, the
deskphone does not accept the DHCPOFFER. Avaya recommends a lease time of
six weeks or greater. If this option has a value of FFFFFFFF hex, the system treats
the IP address lease as infinite as required by RFC 2131, Section 3.3. In this case,
the deskphone does not require renewal and rebinding procedures even if you
receive Options 58 and 59.
Server Administration
May 2018
Installing and Administering Avaya J169/J179 IP Phone H.323
85