I Phone 4 - unable to make calls

[mackengineers]

I have recently bought a Vodafone sim card plus credit but can only make calls, not receive calls or texts.

Can anyone help me with this.

[BandOfBrothers]

Hi @mackengineers

A very warm welcome to the eforum. 

Is this happening in your local area or everywhere ? I'm thinking of possible local mast issues. 

Is this connected to certain contacts or all ?

On the iPhone hold down the Sleep/Wake Button and Home button together until the Apple Logo shows. Then On seeing this Apple Logo release both buttons ,and the iPhone will reset , which has been known to clear most glitches.

or try 

Settings -> General-> Reset -> Reset Network Settings.

Process of elimination: Can you try you're Sim card in another phone to rule out either the Sim or Account or Phone which may be at fault. 

[BandOfBrothers]

Another user is having a similar issue. 

http://forum.vodafone.co.uk/t5/Apple/can-make-calls-but-cannot-recieve-them/m-p/2465224