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CC2564CMSP432BTBLESW: HFP Profile Volume controls & Initiate client reconnect/Disconnect

Part Number: CC2564CMSP432BTBLESW
Other Parts Discussed in Thread: CC256XCQFN-EM, MSP432P401R, BOOST-CCEMADAPTER, CC3200

My setup:
CC256XCQFN-EM
MSP432P401R launchpad
BOOST-CCEMADAPTER
CC3200 AudBoost

Code Composer Studio  Version: 10.4.0.00006 

BT Stack: CC2564CMSP432BTBLESW-v4.2.1.1 (I would really like to use 5.0 or greater Stack)

I would like to make few functionalities for my Work In Progress new product(HFP only I don't want to use HSP as my client is private & custom datasets for security purposes)
1) attend call/cut Call
2) Increase/Decrease Volume
3) Like to use unassisted modes as I'm already using External Codec and maybe would like to use a combination of few BT classic profiles as well HFP+SPP+AVRCP+A2DP together
4) Send custom one way(from by TI BT headphones to my client) ASCII characters Through HFP profile only how can I achieve this?
5) initiate Reconnect/Disconnect to the remote client(not present in the HFP as of now)

I have already tried the demo examples as here  It all works great individually except solving a few of my needs like 2,4 as stated above.

Also, I would like to know how to combine all the above profiles together? 
Correct me in any stages if I'm wrong
New to BT Domain & a rookie Coder. Thanks for your help & Time in Advance.