Avoiding Dead Air in a call center is very simple
Explain what you are doing while you are doing it
Doing this lets the customer know you are addressing their needs and are taking actions towards a resolution for them while allowing you time to catch up
Ask open ended question
Asking questions is good but asking things like "hows the weather?" can boil down to one word answers like "good" or "hot" ask more longwinded questions pertaining to your position that would require mutliple words in order to answer or question that can easily lead into a follow up question.
For example "While I process this just curious to know what the reason you chose our facility?"
Give Information about your business/ upsell
Tell the customer/prospect relevant information about services you provide or softly upsell services that you feel they might benefit from
For example: "I just wanted to make sure you were aware you can also make your online 24/7 as some people seem to like this better than calling in every month."
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the campaigns for left 4 dead are: NO MERCY BLOOD HARVEST DEAD AIR DEATH TOLL
you can call in air strikes with binoculars in certain parts of the game
In call of Duty 4 Modern Warfare or Call of Duty Modern Warfare 2 as it is known as "Precision Airstrike" after you get a 5 kill streak you can call it in by pressing Right on the D-Pad
Assuming you're including the DLC (As of 2013) No Mercy, Crash Course, Blood Harvest, Dead Centre, The Sacrifice, The Passing, Dark Carnival, Swamp Fever, Hard Rain, The Parish. (Campains not canon in the story line) Dead Air, Death Toll, Cold Stream. (Not Including L4D1 Crossover DLC) Dead Centre, The Passing, Dark Carnival, Swamp Fever, Hard Rain, The Parish. (No DLC) Dead Centre, Dark Carnival, Swamp Fever, Hard Rain, The Parish.
This is how I got behind it. I switched to my pistol and got a good running start and in mid-air when your almost over it turn sideways.