How Bluetooth connected with another 2 bluetooth at the same time?

i have 2 of this bluetooth(SparkFun Bluetooth Modem - BlueSMiRF Silver - WRL-12577 - SparkFun Electronics). I want my Bluetooth A (set as master) and connected with Bluetooth B and android phone. So far, only able to connect between A<->B, or A<-> phone, have no idea to connect them at the same time.

Any suggestion?

let say all of them can connected together, then, how to send a message ( usually just a simple number like 1,2,3) to specific Bluetooth?

Hoi,

it is possible with BlueTooth Version 5 only

A.R.Ty:
Hoi,

it is possible with BlueTooth Version 5 only

Version 5? i thought now the latest is version 4 .....

Any suggestion for the alternative ways? i only want the phone make a call with the pre-set number, when the bluetooth A send a message to trigger it, and at the same time, bluetooth B is connected with A as well.