SIP provider registration

[yuvalkry]

Hello,

I have created a virtual phone number with the provider "Zadarma" and I have a userID, password and host.

After defining the trunk, the provider is not yet registered. I asked them if they offer static registration and still
wait for an answer. The information I did get might be relevant, perhaps this is the reason that registration did not succeed?

In order to make sure that VoIP has correct functionality, please open access to our IP address from the following subnets:
185.45.152.0/24
185.45.155.0/24
195.122.19.0/27
103.109.103.64/28
91.203.21.0/27

Used ports (should be opened in firewall)
For signaling:
UDP 5060 or TCP 5065
RTP ports for media traffic
UDP 10000-50000