Is telephone recruitment formal?

If you are asking about telemarketing, there is no formal theory. This is a marketing model. The difference between formal and informal lies in the products of the enterprise and the way to get the telephone number.

If you are asking someone to call you to introduce a job, don't believe it when you make a phone call. You must ask him to provide the website address, company name, etc. If you call from a landline, the credibility is higher, because you can check this number online or 1 14, and pay more attention when you can't find it.