get channel from Flexible_Call_Activity_Update
add callType comment
add comment:Radio Type Qualifier
add channel to group call
add "Call_State_Change"
add comment
update sqlclient class
add case "Start_of_Call", modify #region Individual_Call and receive callType in Flexible_Call_Activity_Update
enable Start_of_Call in fuction AccessSqlServer
use SpinLock to atomic access of AccessSqlServer and only enter "Start_of_Call"/"start_call" if uid do not exist in hashtable:Call_status
modify case "Start_of_Call":case "start_call": to check if update or insert data to sql by Call_status.ContainsKey(dev_call_status.ID)
add Individual_Call of start of call event to insert/update sql
private call :Start of Call(Call State Change)
add function parse_Radio_Type_Qualifier->not finish
distingush land<->mobile in case Individual_Call and disable land<->mobile switch case
change target to gTarget when group call event occur then write to sql