Some countries prohibit using standard ten-digit phone numbers for anything other than person-to-person messages, while others require burdensome administrative tasks, all of which can affect how and if your messages get delivered. Telecommunications networks are highly regulated and differ dramatically from country to country. Delivery is a complicated business, especially if you’re going to manage the entire communications logic yourself. But getting text messages delivered (and successfully acted on by end-users) is a different matter. When filtering out fake sign-ups or protecting user accounts, one of the key benefits of delivering security and verification codes via SMS is reach: so many people own SMS capable mobile devices, which are habitually within arm’s reach of the recipient. If you are already a customer of these APIs, this change will be made automatically. Some routes are faster than others, while certain destinations only allow messages from specific kinds of numbers, and carriers will often filter repeated messages, thinking they’re spam.īecause configuring efficient and reliable SMS delivery can be complex, and will likely require constant maintenance, Twilio offers two pre-built APIs, Verify and Authy, which spare developers the hassle of trying to making sure your verification and authentication SMS messages get to their intended recipients quickly and consistently.Īs part of our ongoing improvements to these APIs, we are announcing the introduction of AUTHMSG, an Alphanumeric Sender ID, for use in 79 countries, which will further increase conversion. However, there are a lot of variables in ensuring reliable and fast delivery of messages globally. Once you see that, you’re good to go.When using SMS to verify a phone number or for two-factor authentication, it’s essential that the message successfully gets to the intended user, without delay, in order to maximize conversion. Here, you’ll see if alphanumeric sender IDs are enabled: How do you check that? Log into your Twilio console and go to “programmable messaging”. If so, you’ll need to contact Twilio support and ask them to enable it for you. There’s one final thing to note: alphanumeric sender IDs may not be enabled in your Twilio account. No one wants to be stuck with your advertisements, and you don’t want to get in trouble. That’s not something that requires a reply, and people probably won’t opt out of something like that.īut be careful about doing something promotional. It would ask you to confirm the transfer, and perhaps have the name of the bank of a signature. Let’s say you’re logged into your bank with a one time transfer password. This can be good for sending for a variety of reasons. You can see now that it comes with a signature at the end. Here’s how it appears on the receiving end: You could even add a link or something like that. For that reason, alphanumeric sender IDs should have a way for people to reply in the messages. If you try to reply back, it will fail because the name isn’t linked to anything. If you’re in the United States however, it’s not supported at all.Īnother thing to bear in mind is the fact that you can’t actually reply to this message. If you’re in a country like Armenia, it’s supported but you have to be pre-registered. So how do you get this working? First of all, you need to make sure that you’re in a supported country. It can be anything you want up to 11 characters. Using Alphanumeric Sender IDsĪs you can see, our message (sent in Twilio) comes from a number listed as “CoolDude”, which we have complete control over. Have you ever received an SMS from a company name instead of a phone number? In many countries (but not the US), you can use alphanumeric sender IDs to send SMS so that the recipients instantly know who sent it. For this tutorial in video form, click here
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