Sending sms on a voxstack ver 2.3.2 too slow

Hi we have 1 voxstack with 4 gateway and Tmobil simcard, but sending sms is too slow, Ho I can set the gateway o send sms faster, please help. Let me know

Can some one from tech support answer my request please

Hello,
Sorry for the trouble .
Could you tell me which way do you send SMS and how long does it take to send a SMS ?

We are sending sms the the same Gateway , we log into the local ip address of the voxstack
Option
SMS, SMS sender, then select All ports

flash sms: on
all 4 gsm-1.x
Destination: Numbers qty=200 (Ex: 13237930108)
Message: only 16 Character

Is taking 8 seconds to send each message

Please help we are having big issue because the slow send

Can you please help

Hello ,

The time the gateway needs to send an SMS is usually between 6 and 10 seconds,

This has to do with the network environment where the customer resides.