How long is the contract for a Two Way SMS number? We have a three-month cancellation time. Updated on May 9, 2016 Tagged: Cancellation Was this article helpful? Yes No Related Articles What is the difference between long code and short code? Can I see the replies from the customers in the customer portal (Two-Way SMS)? What is Two-Way SMS/virtual number? How much does a Two Way SMS Solution cost? Are there any additional costs on incoming replies to my Two-Way messages?