Yealink T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
14
Port->IPv6->Static IPv6 Client->Sec.DNS
Or Menu->Settings->Advanced Settings (default password: admin)->Network->WAN
Port->IPv6->DHCP IPv6 Client->Static DNS(Enabled) ->Sec.DNS
Parameter
static.network.ipv6_icmp_v6.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the IP phone to obtain IPv6 network settings via SLAAC
(Stateless Address Autoconfiguration).
Note: It works only if “static.network.ipv6_internet_port.type” is set to 0 (DHCP). It is
only applicable to T54S/T52S/T48S/T48G/T46S/T46G/T29G IP phones. SLAAC is
enabled on T42G/T42S/T41P/T41S/T40P/T40G/T27P/T27G/T23P/T23G/T21(P)
E2/T19(P) E2 IP phones by default. You are not allowed to configure this parameter for
these IP phones.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Network->Advanced->ICMPv6 Status->Active
[1]
If you change this parameter, the IP phone will reboot to make the change take effect.
DHCP Option for IPv4
The IP phone can obtain IPv4-related parameters in an IPv4 network via DHCP option.
Note
For more information on DHCP options, refer to RFC 2131 or RFC 2132.
Topics
Supported DHCP Option for IPv4
DHCP Option 66, Option 43 and Custom Option
DHCP Option 42, Option 2 and Option 100
DHCP Option 12
DHCP Option 120
DHCP Option 60
Supported DHCP Option for IPv4
The following table lists common DHCP options for IPv4 supported by Yealink IP phones.
Parameters
DHCP Option
Description
Subnet Mask
1
Specify the client’s subnet mask.

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries