Yealink T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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“account.X.outbound_proxy_enable = 1”, and primary outbound proxy server is
configured, the address from DHCP option 120 is used as secondary one; if primary
outbound proxy server is not configured, the address from DHCP option 120 is used
as primary one.
2-The value obtained from DHCP option 120 is used as SIP server IP address (can
resolve up to only one IPv4 address). If primary SIP server is configured, the address
from DHCP option 120 is used as secondary one; if primary SIP server is not
configured, the address from DHCP option 120 is used as primary one.
Default
0
DHCP Option 60
DHCP option 60 is used to identify the vendor and functionality of a DHCP client. You can set the format
for option 60.
Note
The default vendor class ID is “yealink”.
Topic
DHCP Option 60 Configuration
DHCP Option 60 Configuration
The following table lists the parameter you can use to configure DHCP option 60.
Parameter
static.network.dhcp.option60type
<y0000000000xx>.cfg
Description
It configures the DHCP option 60 type.
Permitted
Values
0-ASCII
1-Binary (RFC 3925)
Default
0
Parameter
static.auto_provision.dhcp_option.option60_value
<y0000000000xx>.cfg
Description
It configures the value (vendor name of the device) of DHCP option 60.
Permitted
Values
String within 99 characters
Default
yealink
Web UI
Settings->Auto Provision->IPv4 DHCP Option Value

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