How to send promotional short messages in groups in Jiazhuang Festival?

Hello, in the home improvement industry, short messages are sent in groups, generally using the short message platform of 106, that is, through the short message interface of the operator's gateway.

Advantages are normalization, low shielding, low interception, low cost and high arrival rate. The current SMS sending industry is a little more standardized than a few years ago, but in the industry, phenomena such as "fee deduction", "poor channel", "poor service" and "instability" are still common, reminding the landlord to be cautious when choosing SMS platform!