When you access the Ticket/Support System, the browser is always loading or directly returns some prompts (such as network error, 404, etc.) or fail to download files. Please help confirm the following information and send an email to support@yealink.com. Thank you.

Note: When it is loading, please wait for a while, the browser will prompt

1. When the problem occurred
2. Your country/region
3. Browser access failure prompt
4. Did you access Ticket/Support System through VPN?
5. Please provide us with your IP, our RD will investigate the cause of the failed access.
Please enter https://www.ipip.net/. As below: 

VP59 , T58A with Camera , SIP-T58A , SIP-T57W , SIP-T54W , SIP-T53W , SIP-T53 , SIP-T48U , SIP-T46U , SIP-T43U , SIP-T48S , SIP-T46S , SIP-T42S , SIP-T41S , SIP-T40G , SIP-T40P , SIP-T29G , SIP-T27G , SIP-T23G , SIP-T23P , SIP-T21(P) E2 , SIP-T19(P) E2 , SIP-T33P(G) , SIP-T31(P)(G) , SIP-T30(P) , W90 Multi-Cell System , W80 Multi-Cell System , W60P , W53P , W56P , W52P , T54W with DD10K , W41P , W59R , CP960 , CP930W-Base , CP920