8950 IP phone fail to show the configure which has done on uportal

The intercom line button is configured on the uPortal. After the IP phone is re-logged in, the intercom line button is not displayed on the web page.

1.Flowchart

1、 Intercom line keys are not delivered immediately after being configured. You need to log in to the system again to obtain the line keys. During authentication and login, the system sends an HTTP GET request to the uPortal, and the uPortal responds to the line key information.

2、 Check the logs of the faulty IP phone. It is found that the IP phone reports the uPortal authentication failure during login.

Phone logs:

If the authentication fails, no GET request is sent to obtain the line key.

The root cause is that the authentication fails when the eSpace 8950 IP phone logs in. The authentication fails because the IP phone sends an authentication request to the uPortal. The uPortal site information carried in the 200 message returned by the uPortal is in the domain name format. The TUP sends the domain name to the DNS for parsing and initiates the authentication process again. The domain name fails to be parsed during TUP fault locating.

Manually configure the DNS server on the IP phone. The IP phone can log in to the IP phone and the intercom line button is normal.

if  there have more than 1 DNS ; check the IP and try ping from the Ip phone ; to check the right DNS;