It’s fairly simple to setup a programmable speeddial with asterisk. All with a option to playback what speed dials you have setup.

You’ll need to setup the dialplan to handle the extensions for the speeddial. For me, I choose a *29 to setup the speed dials, then *3X, *4X, and *5X as the actual speed dials. *30, *40, *50 are reserved for playback (see later). I used each range to hold different meanings. *3X was for family, *4X was for friends, and *5X was for restaurants. These instructions should give you enough to set it up and change it to what you’d like.

In your main dialplan (house for this example) in your extensions.conf file:

[house]

;; Normal outgoing rules, whatever you have for your outgoing provider
exten => _ZXXXXX.,1,Dial(SIP/${EXTEN}@PROVIDER)

;; Start of speed dial rules, go at the end of your main dialplan
exten => *29,1,Goto(speeddial,create,1)
exten => *30,1,Goto(speeddial,answer,Speed30)
exten => *40,1,Goto(speeddial,answer,Speed40)
exten => *50,1,Goto(speeddial,answer,Speed50)

;; This handles all the speed dials and will figure out what number to dial
;; and hand it back to your main dial plan. It'll also check to make sure
;; it's valid and if not, play a message indicating it's empty.
exten => _*[3-5][1-9],1,Answer()
exten => _*[3-5][1-9],n,Wait(1)
exten => _*[3-5][1-9],n,Set(NUMBER=${DB(speeddial/${EXTEN})})
exten => _*[3-5][1-9],n,GotoIf($["${NUMBER}" = ""]?BadNumber)
exten => _*[3-5][1-9],n,Playback(speed-dial)
exten => _*[3-5][1-9],n,Playback(call)
exten => _*[3-5][1-9],n,Playback(numbers/${NUMBER})
;; Hand it back to your main dial plan, ie "house"
exten => _*[3-5][1-9],n,Dial(local/${NUMBER}@house)
exten => _*[3-5][1-9],n,Hangup()
exten => _*[3-5][1-9],n(BadNumber),Playback(speed-dial-empty)
exten => _*[3-5][1-9],n,Hangup()

[speeddial]

;; Setup a new speed dial. Note: It won't let you enter any of the
;; playback speed dials, or outside the range
exten => create,1,Answer()
exten => create,n(Start),Read(NEW|custom/speeddial/speed-intro,2)
exten => create,n,Set(STEST=${DB_EXISTS(speeddial/*${NEW})})
exten => create,n,GotoIf($["${STEST}" = "1"]?Overwrite)
;; Put the *30, *40, *50 extentions here so you can't use them, also
;; adjust the range (ie: 31-->59)
exten => create,n,GotoIf($["${MATH(${NEW}<=30,int)}" = "TRUE"]?Start)
exten => create,n,GotoIf($["${NEW}" = "40"]?Start)
exten => create,n,GotoIf($["${NEW}" = "50"]?Start)
exten => create,n,GotoIf($["${MATH(${NEW}>=60,int)}" = "TRUE"]?Start)

;; Prompt for the new 10 digit outgoing number
exten => create,n(Number),Read(NEWEXT|custom/speeddial/enternumber|10)
exten => create,n,Playback(custom/speeddial/you-entered)
exten => create,n,SayDigits(${NEWEXT}
exten => create,n,Read(CHECK,custom/speeddial/correct-press1-otherwise-press-2,1)
exten => create,n,GotoIf($[${CHECK} = 2] ?Number)
exten => create,n,GotoIf($[${CHECK} = 1] ?Record)

;; Record a message indicating who this is (ie, Mother, Father, Friend's name etc...)
exten => create,n(Record),Playback(custom/speeddial/recordmesg)
exten => create,n,Record(numbers/${NEWEXT}:sln)
exten => create,n,Playback(numbers/${newext})
exten => create,n,Playback(custom/speeddial/thankbye)
exten => create,n,Set(DB(speeddial/*${NEW})=${NEWEXT})
exten => create,n,Hangup()

;; This just handles if you want to overwrite an existing speeddial
exten => create,n(Overwrite),Read(OVER,custom/speeddial/speed-overwrite,1)
exten => create,n,GotoIf($[${OVER} = 1] ?Number)
exten => create,n,GotoIf($[${OVER} = 2] ?PlayNumber)
exten => create,n,GotoIf($[${OVER} = 3] ?Start)
exten => create,n,Hangup()

exten => create,n(PlayNumber),Set(NUMBER=${DB(speeddial/*${NEW})})
exten => create,n,Playback(numbers/${NUMBER})
exten => create,n,Goto(Start)

;; If you dial *30, *40, *50 it'll start playing back all the speed dial recordings
;; starting that next higher one.
;; *30 starts playback at speed dial *31
;; *40 starts playback at speed dial *41
;; *50 starts playback at speed dial *51
exten => answer,1,Answer()
exten => answer,n(Speed30),Set(SDIAL=31)
exten => answer,n,Goto(StartPlay)
exten => answer,n(Speed40),Set(SDIAL=41)
exten => answer,n,Goto(StartPlay)
exten => answer,n(Speed50),Set(SDIAL=51)
exten => answer,n,Goto(StartPlay)

;; You can dial any speed dial number while it's going through the playback.
exten => answer,n(StartPlay),Set(TIMEOUT(digit)=2)
exten => answer,n,Set(TIMEOUT(response)=60)
exten => answer,n,Wait(1)
exten => answer,n(Playnumber),Set(STEST=${DB_EXISTS(speeddial/*${SDIAL})})
exten => answer,n,GotoIf($["${STEST}" = "0"]?Add1)
exten => answer,n,Set(NUMBER=${DB(speeddial/*${SDIAL})})
exten => answer,n,Background(press-star)
exten => answer,n,SayDigits(${SDIAL})
exten => answer,n,Background(for)
exten => answer,n,Background(numbers/${NUMBER})
exten => answer,n(Add1),Set(SDIAL=${MATH(${SDIAL}+1,int)})

exten => answer,n,GotoIf($["${MATH(${SDIAL}>=59,int)}" = "TRUE"]?LastDial)

exten => answer,n,Goto(Playnumber)

;; Last number played, wait up to 60 seconds for them to press an * speed dial
exten => answer,n(LastDial),NoOp( No More )
exten => answer,n,WaitExten(60)
exten => answer,n,Playback(goodbye)
exten => answer,n,Hangup()

;; Handle the dialing of the speed dial, just pass it to the main dial plan (house)

exten => _*[3-5][1-9],1,Dial(local/${EXTEN}@house)

Here’s the zip file with the custom/speeddial sounds.  You’ll want to unzip this in your sounds/custom folder.

Enjoy!