Does Telecom send short messages in groups?

The steps are as follows:

1. You can manually enter the number or import the number yourself. Txt files (please use Unicode encoding) and excel files are supported. Import number → click browse to select the required number file → click read data → select number to return → filter number (filter out text and landline number) → perform secondary filtering (filter out duplicate mobile phone numbers).

2. Edit the short message content (70 words for each short message, 70 extra words count as two short messages, and the long message is no more than 260 words).

3. Finally, click Submit or Send SMS (SMS sent successfully).