The trial version is almost identical to the paid version, with just a few exceptions. In the trial version of Raynet, it is not possible to activate Electronic Signatures. This feature can only be activated after filling in your billing information – switching to the paid version, due to Electronic Signatures being a paid service.
You also can't send a quote or sales order via email from the trial version.
But apart from that, you can use the full version of the CRM system from the very beginning.