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I am trying to set up Linphone as a softphone using an SIP account I created online. While I was able to add the SIP account successfully, I am facing two main issues:

  1. Authentication Issue: Linphone continuously prompts me to verify my password with a dialog titled, "Unable to authenticate your account. Please verify your password."
  2. Call Issue: When I attempt to make a test call by pressing the call icon next to a username, nothing happens.

Here are the details of my setup and what I've tried so far:

SIP Account Details

  • SIP Provider: Linphone (where my SIP account was created)
  • SIP Domain/Server: sip.linphone.org
  • Transport Protocol: TLS
  • Outbound Proxy: sip:sip.linphone.org

Linphone Configuration

  • Version: 4.4.21
  • Platform: ZorinOS 17.2 Lite
  • Account Settings:
    • Register: Enabled
    • NAT and Firewall (ICE): Enabled
    • DTMF Mode: SIP INFO

Steps Taken

  1. Added my online SIP account using the option "Use SIP Account" on the "Account Assistant" page.
  2. Verified that the SIP username, password, and server details are correct.
  3. Checked if registration is enabled for the SIP account in Linphone.
  4. Checked the firewall and network settings to ensure SIP and RTP traffic is not blocked.
  5. Made a test call to 09002 (as suggested here).
  6. Enabled debug logs in Linphone and observed the following error: WARNING no host found in this uri

Additional Information

My questions are:

  1. What could be causing the continuous password verification prompt in Linphone?
  2. Why are calls not going through, and how can I troubleshoot this further?
  3. Are there specific settings I need to configure in Linphone or my network to resolve this issue?

Any help or suggestions would be greatly appreciated!

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