Are your text messages cut short (truncated)?

New accounts are limited to a maximum of three-message-parts (459 GSM characters). 

SMS messages are 160 characters (including spaces and punctuation). We support sending longer text messages, however you are charged 'per SMS Part' that you send.

For example, if you send a 159 character message, you are charged for one SMS Part. However, if you send a 161 character message, you are charged for two SMS Parts.

 

How to increase your maximum allowed SMS Parts:

You can update your account for sending longer messages:

  1. Log into the Web Dashboard at tnz.co.nz
  2. Select Users | Outbound Users from the menu
  3. Click on the user you would like to update
  4. Click the Edit/Modify button
  5. Select the SMS Options tab
  6. Adjust SMS Parts Limit to match the number of allowed message parts
  7. Click the Update button
  8. Repeat these steps for other users that require updating



'Characters per SMS Part' Calculation:

Number of Characters (using GSM 7 bit encoding) Number of Message Parts Used Total Charge for Message
0 - 160 1 1x SMS Price
161 - 306 2 2x SMS Price
307 - 459 3 3x SMS Price
460 - 612 4 4x SMS Price
613 - 765 5 5x SMS Price
766 - 918 6 6x SMS Price
919 - 1071 7 7x SMS Price
1072 - 1224 8 8x SMS Price
1225 - 1377 9 9x SMS Price



However, if you send your SMS message using UCS-2 encoding, the number of characters per message is reduced to 70 characters. Some characters and symbols are not supported using the standard GSM character set, which causes your SMS message to automatically convert to UCS-2. The most common causes are emojis, curly quotes and apostrophes (such as “ and ”), and language characters (such as 是 and é).

Number of Characters (using Unicode UCS-2 encoding) Number of Message Parts Used Total Charge for Message
0 - 70 1 1x SMS Price
71 - 134 2 2x SMS Price
135 - 201 3 3x SMS Price
202 - 268 4 4x SMS Price
269 - 335 5 5x SMS Price
336 - 402 6 6x SMS Price
403 - 469 7 7x SMS Price
470 - 536 8 8x SMS Price
537 - 603 9 9x SMS Price




See the GSM 03.38 specifications for more information.