error 480

  1. Cisco SPA504G Registration Failed Error 480 After V16 to V18 Upgrade

    I wanted to update my earlier thread with the same title, to advise the resolution. But as that thread is now locked, I am creating this new thread. The text of my message posted to the original thread is included below, after the resolution. RESOLUTION It transpired that this particular phone...

  2. Cisco SPA504G Registration Failed Error 480 After V16 to V18 Upgrade

    Two years ago, I used the info at https://www.3cx.com/sip-phones/cisco-spa/ to successfully provision a SPA504G phone using a custom template. Subsequently this phone has worked consistently with 3CX version 16. However, after upgrading to V18, registration failed for each of the phone's four...
    • Dave Williams
    • Thread
    • cisco spa504g custom template error 480 phone registration registration failed spa504g template programming v18 ver18 version 18
    • Replies: 1
    • Forum: Other
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