VocalNet VocalNet offers IP origination and termination from all 50 states and around the world. Supported codecs include G.729a and SIP. Since 2001, VocalNet has been offering local, long-distance and toll free numbers all over the world.

http://www.didx.net The world's largest footprint for SIP and IAX2 trunking service, for wholesale voip service providers and other telecom companies who want to sell / offload DID to 4700+ ITSP's as of February 2007.

http://www.phone2net.com Phone 2 Net offers SIP , IAX2, and h323 trunking services. Get unlimited incoming calls over IP to any of the protocols or Google, MSN, or Yahoo messengers. Guaranteed tier 1 quality numbers only. Best price in the market. visit www.phone2net.com


DID World Wide International numbering provider covers over 50 countires. Instant activation, forwarding to regular phones (PSTN), SIP, IAX, H323, GTalk, Messenger and Sype.

http://www.VirtualPhoneLine.com World's first company to provide a phone number on an IP device in year 2000, continues the tradition to offer SIP and IAX2 trunks, call forwarding to PSTN, MSN, and Google Talk messengers. Try numbers on it free for 25 days, no charge.


Provides billing, clearing house, support, and now server management services for service providers to sell their numbers around the world.


IAX2 Trunking Providers