For people raised on mobile phones and texting, calling a help line can be a exercise in obsolescence: first, it requires you to make a voice call, often to speak to an robot, or hold for what seems like hours while listening to muzak. On Thursday, toll-free numbers administered by wholesale VoIP provider Bandwidth will gain the ability to send and receive text messages — which could mean that you never have to hold for an operator again. Bandwidth, which is the nation’s sixth largest telco based the number of telephone numbers it has, isn’t designing the toll-free SMS program for its clients. Instead, it’ll be up to each company or software provider to design their system using Bandwidth’s APIs protocols. So there aren’t many toll-free numbers you can text today.