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.
Expired leases cause 9600 Series IP Deskphones to restart. Avaya recommends
providing enough leases so the IP address of a 9600 Series IP Deskphone does not
change if you briefly take the phone offline.
Note:
The DHCP standard states that when a DHCP lease expires, the device must
immediately cease using the assigned IP address. However, if the network has
problems and the you centralize the DHCP server, or if the DHCP server has
problems, the deskphone does not receive responses to its request for a renewal
of the lease. In this case the deskphone is unusable until the server can respond.
Expired leases do not cause the phone to restart because you can renew expired
leases. However, if the new IP address is different than the previous, the phone
restarts. Ensure that after an IP address is assigned, the deskphone continues
using that address after the DHCP lease expires, until the system detects a
Server Administration
March 2018 Administering Avaya 9608/9608G/9611G/9621G/9641G/9641GS IP Deskphones H.
323 53
Comments on this document? infodev@avaya.com
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