One of the missing features in iPhone is speech recognition capability. It doesn’t give the flexibility of voice commands e.g. (voice dialing). If you are missing speech commands in iPhone, try using Vocalia.

Vocalia is a powerful speech recognition application. It helps you in finding a contact using voice command. You can call or send email to the selected contact. It is easy to use; it doesn’t require any kind of recording against the contact. It provides phonemic transcriptions for all the contacts (English only).

Vocalia is available in iTunes App Store. It’s not available in Cydia or other jailbroken installer.