Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'voip', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
voip
Transposition0
ovip
viop
vopi
Transposition1
iovp
vpio
Transposition2
poiv
Transposition2r
piov
Transposition0x2
ovpi
Slip3A
oivp
vipo
Slip3B
ivop
vpoi
Omission
oip
vip
vop
voi
Repetition
vvoip
vooip
voiip
voipp
QWERTY Substitution
coip
boip
viip
vpip
voup
voop
voio
QWERTY Repetition after
vcoip
vboip
voiip
vopip
voiup
voiop
voipo
QWERTY Repetition before
cvoip
bvoip
vioip
vpoip
vouip
vooip
voiop
QWERTY Substitution Transposed
ocip
ciop
copi
obip
biop
bopi
ivip
vipi
pvip
vipp
vppi
ovup
vuop
vopu
ovop
vopo
ovio
vioo
vooi
WrongDoubles
$JSON
$address
$applyDefault
$clone
$commas
$copy
$copyFields
$delete
$entries
$expand
$filt
$getType
$isArray
$isBoolean
$isClass
$isDate
$isElement
$isFunction
$isNumber
$isObject
$isString
$isType
$isValidDate
$json2txt
$keys
$load
$matchall
$parseFloats
$pick
$postJSON
$prune
$save
$set
$sortBy
$sortKeys
$stringify
$stringifySafe
$sum
$svgPoster1
$table
$textify
$toFixed
$type
$without
Glossary
Transposition = adjacent pairs of letters are swapped
Omission = individual letters are missed out
Repetition = individual letters are entered twice consecutively
QWERTY substitution = letters are replaced by each of their QWERTY-keyboard based physical neighbours (e.g. 'h' gets replaced with y, u, j, n, b, g)
QWERTY repetition type 1 = letters are followed by each of their QWERTY-keyboard neighbours
QWERTY repetition type 2 = letters are preceded by each of their QWERTY-keyboard neighbours
