Incoming calls don't go through

We’re using the latest VitalPBX 4 with PJSIP in our testing with Zoiper 5. Incoming calls always go to voicemail.

We have tested several Softphones and incoming calls work well.
Apparently it is an Issue of the latest version of Zoiper with PJSIP.

Solution:
Create the account in Zoiper 5 and select UDP instead of TCP.
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Then you give Skip and Yes

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