To send an sms to a fax machine (vodafone) put 9741 then the fax no then send. You'll get a confirmation text about 5 mins later.

If you key *#104# and press call you will get a number beginning with 44 replace that 44 with 0 then dial the rest of that number into any phone - it's a direct line to your voicemail you can even divert calls to it.

Get through to customer services free by dialling 1611.
For Vodafone UK users, if you press *#105# then call you can check the status of when your account was last updated. 

To know where the nearest transmitter in your area, press *#102# and call.If not works try *#105# (Vodafone).

Type *#147# to display the last number that called with the time and date of the call aswell when phone was on/off.. 

On portuguese Vodafone call 1799 to receive a message with your credit balance, call *#100# to the same thing call *#102# to see your last call

*#103# gives you the time and date

Vodafone, quick scratch card top-up, type *#1345*topupcardnumber# and you will see your new balance on your display! If you press *#1345# you can see your balance on screen.

Type *#31# / *#30# / or *#102# to get the price duration and number of your last call.

Cell broadcast: 050 to display local area code and postcode.

Free voicemailing! Call 70612 and enter your phone number and voice mail password.