BTX is an authorized reseller and installer of RingCentral. Tip of the Day, using Custom Call Routing rules. You can use custom rules to allow family members, important customers, or you boss to forward to your cell and all other calls can go to your office phones voicemail. You can customize hours, days of weeks to schedule different rules to apply to your profile. These powerful tools help you work more efficiently while not being tied to your desk. BTX is a RingCentral dealer and certified installer and can help you with the process.