This reminds me: when people insist on having a real phone call in an email, it could be something that they don't like to put in writing. So it's a good practice to ask what the topic of the phone call will be so that you can join it prepared.

If it indeed is something that you feel might be fishy, I further recommend the following: write a summary of what was discussed and send your summary to the people on the call as "meeting minutes -- 2026-02-11" (make this a habit, and always say "I do this routinely to remember what was agreed"). This can easily avoid you being trapped by dubious propsals or being unwittingly on the wrong side of the law.