I bought my grandad a cheap Android phone - a Huawei Ascend Y330 - for Christmas. He likes Google Now a lot, but for some reason the command Call <somebody in his phone book> isn't working.

It's saying (in a robotic voice, not the usual one) Say the name of the contact you want to call, or say cancel. It isn't coming up with any contact suggestions either, and it isn't working for any contacts, from simple home to slightly more complicated names.

Initially it came up with a permission request to access his contacts, which I approved.

Saying Call ACME Inc does work though, when it needs to search online for the number.

It's running Android 4.2 Jellybean and there are no updates available.

Any ideas?