mega phone

BizPBX is a Free Phone System with Conference, IVR, Record, Voicemail, Soft Fax

look up personal/home address from a phone number (US & Canada) usage

Convert video files (AVI, MPEG, MP4 and other) to mobile phone videos (3GP, 3G2)

With this contact form you can restrict phone field to numbers only.

Send SMS messages to any phone in the world if you have a clickatell account.

Gizmo is a Free Phone For Your Computer that makes calling as easy as instant messaging.

TeaShark gives you full web browsing on your mobile phone.

VoIP service software for pc to phone voice calls, mobile VoIP calls, web calls

Screen Shrink is a utility to assist PDA, mobile phone and iPhone developers.

iDEN Phonebook Manager can manage your iDEN phone book.