Yealink SIP-CP Series, Руководство по автоматической настройке

Страница: 56 / 74

Yealink IP Phones Auto Provisioning Guide
48
Why is the permission denied when uploading files to the root directory of the FTP server?

Ensure that the complete path to the root directory of the FTP server is authorized.

Check security permissions on the root directory of the FTP server, if necessary, change the
permissions.
Why doesn’t the IP phone obtain the IP address from the DHCP server?

Ensure that settings are correct on the DHCP server.

Ensure that the IP phone is configured to obtain the IP address from the DHCP server.
Why doesn’t the IP phone download the ring tone?

Ensure that the file format of the ring tone is *.wav.

Ensure that the size of the ring tone file is no larger than that the IP phone supports.

Ensure that the properties of the ring tone for the IP phone are correct.

Ensure that the network is available and the root directory is right for downloading.

Ensure that the ring tone file exists on the provisioning server.
Why doesn’t the IP phone update configurations?

Ensure that the configuration files are different from the last ones.

Ensure that the IP phone has downloaded the configuration files.

Ensure that the parameters are correctly set in the configuration files.

Ensure that the value of the parameter “static.auto_provision.custom.protect” is set to 0. If it
is set to 1, the provisioning priority is as follows: phone/web user interface >central
provisioning >factory defaults. A setting you make using a lower-priority method does not
apply to or override a duplicate setting made using a higher-priority method.
For more information, refer to Yealink_SIP-T2_Series_T19(P)
E2_T4_Series_T5_Series_CP860_IP_Phones_Administrator_Guide_V81 , Yealink IP DECT Phone
Administrator Guide _V81 or Yealink_SIP-T5_Series_CP960_IP_Phones_Administrator_Guide .