This should be simple, but I'm having trouble with suming values across groups:
[code language="sql"]$a = @()
$b = New-Object pscustomobject -property @{TypeName = "Type A"; TypeId = "12"; Calls = 43}<
[code language="sql"]$a = @()
$b = New-Object pscustomobject -property @{TypeName = "Type A"; TypeId = "12"; Calls = 43}<