how can i get text messages in basement office at work

we are moving our office to a basement location at work.  Historically text messages and cell phone reception is very poor in this location.  What are the options for an individual?  I assume you could forward your cell phone calls to  a landline.  What about text messages?  Is there a device that can improve reception?  It is imperative that I receive texts and calls during the day instead of getting them at the end of the day when leaving the office.