I am sure others may have encountered this problem but I have not been able to find a solution on the forums.
Recently I have started using Frontline SMS on the T-mobile network here in the UK. I am using a T-mobile internet dongle/modem as my hardware (Huawei E173).
It seems to take extremely long to send 70 messages. Its far slower than if it was to be done on a mobile phone. Could you advise why this might be and what could be done to speed things up?
Thank you for getting in touch about this, and sorry to hear you are having problems with sending speed. You can read about the speed of sending-receiving and techniques which can be used to speed things up here in our FAQ.
I hope this proves helpful, but if you need further information please feel free to ask.