SIP Trunk Authentication / Registration
This topic covers issues related to SIP trunk authentication or registration failure. If your SIP trunk is experiencing problems due to incorrect credentials, realm/domain, allowed IP, expiry, or challenge/response issues, this is the place to find solutions.
Common symptoms: The trunk will not register, authentication failed, unauthorized, credentials rejected, or registration keeps dropping.
Please note that this guide is not intended for IP-auth trunk call routing failures without auth/registration symptoms.
If you're unsure about the specific terms, don't worry! We provide clear explanations of the technology involved to help you troubleshoot effectively.
Navigate through our subtopics for more detailed information:
We're here to help you get your SIP trunk up and running smoothly again!