enforce a law banning all telemarketing calls to commercial businesses

i am a small business owner in Dallas, Texas. i have one land line and a cell phone that i use for communication with my customers and staff. over 60% of all inbound calls are from telemarketers trying to sell me or my staff products and services. like any small business, this costs us time and money we cant afford. you can ask the telemarketers to remove you from their list, but some companies continue to call you anyways. what i and other small businesses have been experiencing is harassment. We all go to work every day to provide our services to our communities, not sit at the office answering the phone, buying services from other companies all day. So i hope you agree with me and join this petition to finally end all telemarketing calls to commercial businesses.