GOautodial Open Source Omni-channel Contact Center Suite

Hello there!
Hope this finds you well

Well, i am using GoAutoDial 3.3. I attached the zoiper phone with GoAutoDial 3.3 and are using default campaign.
First file is the image of default campaign.
And carriers settings are in 2nd file.
Advance carrier setting are in 3rd file.

Error is "waiting for ring"
than said dial timed out.

And Asterisk says this:
Notice [3665] : chan_sip.c : 13795 sip_reg_timeout: --Registration for '864767566@dal.justgovoip.com' timed out, trying again.

I will really appreciate if you guide me.
Thank you!