You can send SMS reminders longer than 160 characters if you are running Genie v8.8.6 or above. To send these, ensure that the Limit each SMS to drop-down is set to more than 1 Credit.
A "simple" SMS is any reminder that contains up to and including 160 characters. A "long" SMS is any reminder that contains more than 160 characters.
When sending an SMS which uses more than 1 SMS credit, a 7-character overhead is required by the messaging provider to join the "blocks", meaning that every credit after the first credit can contain up to and including 153 characters.
|1 - 160 characters||1 credit||Simple SMS|
|161 - 306 characters||2 credits||Long SMS (2 blocks = 160 + 153)|
|307 - 459 characters||3 credits||Long SMS (3 blocks = 160 + 153 + 153)|
Including non-standard characters
If your reminders include any non-standard characters that are not part of the Global System for Mobile (GSM) Standard, you will be limited to 70 characters per SMS credit for the first credit. The character limit then goes down to 67 characters if the entire message is more than 1 credit.
|1 - 70 characters||1 credit||Simple SMS w/ non-standard characters|
|71 - 134 characters||2 credits||Long SMS (2 blocks = 67 + 67)|
|135 - 201 characters||3 credits||Long SMS (3 blocks = 67 + 67 + 67)|