Phone Spell is a PHP class which can find words which can be used to spell a phone number. It takes a given phone number and tries to find existing words with letters equivalent to the phone number digits. It uses the pspell extension to look up words, but can also use a custom dictionary to find the equivalent words.
Happy Phone Number provides easy methods to format phone numbers from your Rails models. Virtually any country specific format or convention could be supported, including national and international format. For the not (yet) supported countries, a general method using a simple mask is also provided.