Hi! I can help you set up your Sonetel number with BYO SIP Trunk. It looks like the missing password/authentication is likely causing the “Fail to create SIP Trunk Credentials” error. Could you check if Sonetel provides a SIP username/password or if they use IP-based authentication? Once confirmed, I can guide you step-by-step to configure it correctly and ensure calls work smoothly.
@ppz.terminus