Yealink SIP-T54S Administrator's Manual page 120

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
static.network.ipv6_icmp_v6.enable
Description:
Enables or disables the IP phone to obtain IPv6 network settings via SLAAC (Stateless
Address Autoconfiguration) method.
0-Disabled
1-Enabled
Note: If you change this parameter, the IP phone will reboot to make the change take
effect. It is only applicable to SIP-T54S/T52S/T48G/T48S/T46G/T46S/T29G IP phones.
SLAAC is enabled on SIP-T42G/T42S/T41P/T41S/T40P/T40G/T27P/T27G/T23P/T23G/T21(P)
E2/T19(P) E2/CP860/CP920 IP phones by default. You are not allowed to configure this
parameter for those IP phones.
Web User Interface:
Network->Advanced->ICMPv6 Status->Active
Phone User Interface:
None
To configure IPv6 address assignment method via web user interface:
Click on Network->Basic.
1.
Select the desired address mode (IPv6 or IPv4 & IPv6) from the pull-down list of
2.
Mode(IPv4/IPv6).
94
Parameters
Permitted
Default
Values
0 or 1 1