I work as a nightclub promoter in a major city and we use mass texting to spread the word about events. The problem is in the past month or two we have noticed a lot lower response rate to our texts. In speaking to a lot of people I've figured that many of our texts aren't going through. I know there are bulk sms services, but the problem is we need the sms to come from our personal numbers to respond to questions, be able to call us, etc. I've looked into bulk sms services and it doesn't seem like this is an option. Right now we use Android phones and Blackberrys to send our sms's but this is obviously not getting a good delivery rate. Does anyone know a way to solve this issue?