VOIP

e164.org
- In a nutshell: E164.org is a public enum directory of telephone numbers that can be reached over the Internet by anyone anywhere!
  The system works by publishing a DNS zone, 'e164.org', that can be used by various Internet applications. The idea is to be able to map your phone number to an Email address, website, VoIP addresses, etc.
iNum
- iNum stands for international Number. It is a new kind of global phone number for a new kind of world -- a world with a new geography that's about local presence and global relationships, not about distance or national borders.
  iNum is making use of the +883 global country code created by the ITU (International Telecommunication Union).
  Voxbone, with deep expertise in VoIP and telephone numbers, was assigned +883 5100 in 2008 and started the iNum Initiative which maintains the SIP and administrative infrastructure to enable this global number range for IP Communications.
Enum Lookup
- Enter Number to see if there is a enum entry registered in the database.
SIPBroker
- Call over 2,000 VoIP networks for free!
  SIP Broker is a free service that provides unlimited VoIP calls to millions of people around the world. No signup is necessary.