Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Parameter
Permitted Values
Default
1-On
If it is set to 1 (On), the IP phone will obtain the provisioning server address by detecting
DHCP options.
Web User Interface:
Settings->Auto Provision->DHCP Active
Phone User Interface:
None
static.auto_provision.dhcp_option.list_user_
options
Integer from
128 to 254
Blank
Description:
Configures the custom DHCP option for requesting provisioning server address.
Multiple options are separated by commas.
Note: It works only if the value of the parameter “static.auto_provision.dhcp_option.enable”
is set to 1 (On).
Web User Interface:
Settings->Auto Provision->Custom Option(128-254)
Phone User Interface:
None
To configure the DHCP Active feature via web user interface:
1. Click on Settings->Auto Provision.
2. Mark the On radio box in the DHCP Active field.
3. Click Confirm to accept the change.
To configure the custom DHCP option via web user interface:
1. Click on Settings->Auto Provision.