Open ITSP List

Welcome to the Open ITSP (Internet Telephony Service Provider) list, a directory of ITSPs who have registered with DIDWW and have opened their network for free incoming voice traffic. This is very attractive feature that allows customers to enjoy the benefits offered by VoIP communications.

The names of all listed ITSPs are directly integrated into the DIDWW’s distribution network websites and ordering wizards, providing visibility to the ITSP and promoting their services.

This directory is free of charge to all ITSPs and is open for listing, updating, downloading and synchronizing. The Open ITSP list is rated according to the number of DIDs that are forwarded by our infrastructure to each listed ITSP.

Provider Name Country Protocol
Voipcheap Germany SIP
VoipBuster Germany SIP
Voipstunt Germany SIP
VoipWise Germany SIP
Voipfonecouk United Kingdom SIP
Voicetrading Germany SIP
Voipdiscount Germany SIP
Voipraider Germany SIP
Vitelity United States SIP
VOIPPRO Luxembourg SIP
VoipBusterPro Germany SIP
VoipBusterUnited Germany SIP
Voipgain Switzerland SIP
Voztele Spain SIP
voipGATE Luxembourg SIP
Voipian Germany SIP
VoipBON Croatia SIP
Voipilla Turkey SIP
VoipBlast Switzerland SIP
VoipTalk United Kingdom SIP
VozToVoice Colombia SIP
voip ms Canada SIP
Voipbuy Hong Kong SIP
VOIP Much Canada SIP
Virtual-Call Switzerland SIP
Voipjumper Luxembourg SIP
Voicecall Brazil SIP
VoiceHost Ltd United Kingdom SIP
Voyced United Kingdom SIP

Please login or register to see full list of providers with rating and graphs.