Number Pool Code
There are two options in the Number Pool Code.
1. Use a pool of random numbers-The from number will be randomised. Perfect when you're sending multiple messages to the same user.
2. Use a fixed number.
This setting applies to our shared numbers only, if you choose to use a fixed number your messages will come from the same shared number each time.
Using a random pool of numbers means the messages will come from a different number each time.
