Does your VoIP-Device/Client have access to the
Initiate a «Ping» to the Registrar Domain.
Initiate a «Trace Route» to the Registrar Domain.
Do you have a firewall, that may not allow or that blocks our services?
Configure the Needed Firewall Rules
Is the configured SIP Data in your VoIP-Device/Softphone correct?
Check the Registrar Domain (spelling, correct country/service).
Check the SIP Login Data (spelling, white spaces, …).
Does your VoIP-Device/Softphone try to register too often?
Adapt the Re-Register-Time to be between 180-300 seconds.
Does another service use/block the port 5060 (S
Change the SIP Port to 6000.