Hence why in old movies you will see people tapping the hook switch to get an operator. This is effectively hanging up and picking up the phone really quickly as there is no other way to send “outofband” messages down an already established audio channel. When an Analog device attempts to place a user on hold, make another call or switch between callers a “Flash Hook” event is sent down the phone line to the Telco/Exchange/Audiocodes. If you can come up with a better wireless conference solution for Skype4B I’m eagar to hear it.
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