This is kara.
Now I am selling SMS Modem, which can send bulk sms, support AT command, we will provide sms caster and USB driver.
SMS Modem 1/8/16/32/64 ports available.(2G/3G/4G)
In addition I am selling SK sms gateway, which support AT command/ SMPP connect/USSD Command, HTTP/API.
SK SMS 4-4/8-8/8-32/16-16/16-64/16-128/16-256/32-32/32-128/32-256/32-512/64-64/64-128/64-256/64-512 ports available.
The above 2 types of sms gateway is on Sale, if you are interested, please contact me now!
Skype:skyline.kara
WhatsApp/wechat: +86 18211260112
https://www.alibaba.com/product-detail/WCDMA-3G-SMS-Bulk-32-ports_60800529624.html?spm=a2747.manage.0.0.392471d2MMXEad