SMS Spam Filters: Why Carriers are blocking your bulk messages

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We get a lot of questions about the right way to use SMS marketing and send bulk messages to mobile phone numbers, and most of them have to do with the blocks or filters that carriers impose to solicited (and non solicited) messages.

In this post we try to shed some light on the subject so you can be better prepared before you decide how to use SMS messages in your company. Enjoy!

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Rotating individual SMS deliveries between multiple long codes

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Today we are glad to announce a new feature for our platform: you can now rotate your individual SMS deliveries between any number of long codes in your account. This was already in place for SMS campaigns, but is now available for individual messages. So for example when sending your A2P messages you can have them being sent in a balanced way across all your numbers.

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Single Opt Ins now available for your SMS Services and Short Codes

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Up to now we only supported double opt ins for your SMS services, but today we are proud to announce that we added the option of single opt ins too! This should allow you to build services that are more agile to interact with and increase the chance of getting new subscribers.

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Using multiple Long Codes (aka DIDs) to send your SMS Campaigns

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In our previous post “Short Codes or Long Codes? Benefits and Drawbacks for your SMS Campaigns” we discussed the main differences between using long codes and short codes. One of the most important of those differences is the throughput: long codes are slower because carriers usually impose a 1-SMS per second limit.

Today we are announcing a new feature for your SMS campaigns: You can specify multiple DIDs (or long codes) as the origin of your messages, and our platform will take it from there, trying to evenly balance the traffic between them.

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Short Codes or Long Codes? Benefits and Drawbacks for your SMS Campaigns

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Choosing the right tool for the job is always a good idea and the time you invest in evaluating benefits, risks, and limitations of each one of those tools always pays off in the end.

In this post we’re going to take a look at two different ways of sending your Transactional and Promotional SMS: Long Codes and Short Codes.

Note that using short codes is still the preferred way for sending SMS’ to a large number of users. Now, if you are using long codes (aka DIDs) for some of your local (or international) mobile SMS campaigns, you will notice that there are some limitations and risks involved. Let’s see the pros and cons of both options.

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