I'd like to search my iPhone contacts using a part of a telephone number as a key (search by substring). The integrated spotlight search, however, doesn't return any entries when searching for a full telephone number or for its part. The number formatting in search doesn't appear to make any difference.
Suppose there an entry in the Contacts.app (number is shown exactly as it apperars on the screen):
mobile: +41 76 123 23 43
Neither of the following searches in spotlight returns "John Smith", as expected
+41 76 123 23 43
Is it possible to search for a number using spotlight or an alternative application?
Tested on iPhone 3GS with iOS 4.2.1