Yealink SIP-T2 Series, Administrator'S Manual

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Troubleshooting
885
Scenario 1:
If the IP phone obtains the IPv6 address, the format of the URL to access the web user
interface is “
[IPv6 address]” or
“
http(s)://[IPv6 address]
”. For example, if the IPv6
address of your phone is “fe80::204:13ff:fe30:10e”, you can enter the URL (e.g.,
“[fe80::204:13ff:fe30:10e]” or “http(s)://[fe80::204:13ff:fe30:10e])” in the address bar of a
web browser on your PC to access the web user interface.
Scenario 2:
Yealink IP phones support using FTP, TFTP, HTTP and HTTPS protocols to download
configuration files or resource files. You can use one of these protocols for provisioning.
When provisioning your IP phone obtaining an IPv6 address, the provisioning server
should support IPv6 and the format of the access URL of the provisioning server can be
“
tftp://[IPv6 address or domain name]
”. For example, if the provisioning server address
is “2001:250:1801::1”, the access URL of the provisioning server can be
“tftp://[2001:250:1801::1]/”. For more information on provisioning, refer to
Yealink_SIP-T2_Series_T19(P) E2_T4_Series_CP860_IP_Phones_Auto_Provisioning_Guide
.
’
Check if the IP phone is configured to obtain the time and date from the NTP server
automatically. If your phone is unable to access the NTP server, configure the time and
date manually.
Do one of the following:

Ensure that the IP phone is properly plugged into a functional AC outlet.

Ensure that the IP phone is plugged into a socket controlled by a switch that is on.

If the IP phone is plugged into a power strip, try plugging it directly into a wall
outlet.

If your phone is PoE powered, ensure that you are using a PoE-compliant switch or
hub.