How to text between a PC and IPhone?

My employer has asked me to figure out a way that he can send/receive a text messages to/from any of the computers in the office on his IPhone when he is out of the office. Most all the programs/apps I have been finding are geared towards sending texts from a pc( and all of those I foundrequire a mobile # to link to), but not for receiving texts on a pc.

Since he has a iphone, he can receive corporate emails using his work email. As far as a work computer, you can use your work email address to send and receive to and from his iphone. If your employer has problems setting the email on his iphone he can contact the IT department.

Using google mail account