you need to modify the alerts plugin or create a new one that simple sends and email and it will create a new profile option for SMS email addresses. Have your users provide an email address that sends to their SMS number. Simple as that, no need for a true SMS gateway/service.
this method is free, unless you want to pay someone to make the plugin for you.
this method is free, unless you want to pay someone to make the plugin for you.
Lost interest, sold my sites, will browse here once in a while. It's been fun.