Calls and texts (SMS/RCS) aren't generally available from within the Work Profile because telephony works across the entire device and operates independently of the Work Profile. However, your IT admin may allow you to use other types of messaging apps (i.e., WhatsApp, Signal, etc.) and VoIP solutions in the Work Profile.
If allowed by your IT admin, contacts saved in your work contacts app can be searched from your personal contacts and dialer apps on devices running Android 7 or later. These work contacts will also appear in the caller ID.