The Avaya phones use a DHCP double dip. Initially they will DHCP in the native or access vlan. Option 176 can then specify a vlan. If so, the phone releases the DHCP scope and then will send a DHCP request in the new vlan (ie with 801.1q tag). If the switch is configured to allow this vlan, then the phone will get a new lease in the new vlan.
There is also a timer that, until it expires, subsequent DHCP requests will still occur on the "voice" vlan. After the timer expires, the DHCP requests are then sent on the native or access vlan and the whole process starts again.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...