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SparVoip SparVoip
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 55 40 55 64
Fax: +49 221 3 54 95 64
Website
Another new VoIP provider from Finarea (VoIPBuster, VoIPCheap etc) initially offering 35 free destinations.

More, detailed information on the Betamax group of companies can be found here:

Voipcheap.com Voipcheap.com
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
20 hours/month free to 50 destinations - Different free destinations as voipcheap.co.uk - Another Betamax company

More, detailed information on the Betamax group of companies can be found here:

VoipDiscount VoipDiscount
Im Mediapark 8,
50670, Köln,
Germany
Map
Telephone: +49-221-3549565
Fax: +49-221-3549566
Website
A new service of Betamax in Germany offering free VoIP calls to 50 destinations. (SIP)

More, detailed information on the Betamax group of companies can be found here:

Low-Rate VoIP Low-Rate VoIP
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
Another discount VoIP service from the Betamax Group in Germany (SIP)

More, detailed information on the Betamax group of companies can be found here:

Internetcalls Internetcalls
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
 A new trademark of Betamax (Voip Buster, Voip Stunt, VoipCheap, SparVoip, Netappel and Sip Discount) with 45 free destinations.

 More, detailed information on the Betamax group of companies can be found here:

poivY poivY
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
Broadband / PC to Phone VoIP service provider - Another new Betamax Service - many destinations for 0.015 Euro. (see also their sister companies, VoipBuster, VoipStunt, Netappel, VoipCheap, SipDiscount, VoipDiscount, SparVoip.)

More, detailed information on the Betamax group of companie ...
VoiPax VoiPax
Girmes-Kreuz-Str. 55,
41564, Kaarst,
Germany
Map
voipax is the new way to make worldwide phone calls! It´s so simple and totally free for calls to all other voipax users. Just download the voipax client and start. The download and the voipax client are for free!

Free calls to 40 destinations around the world 
NetAppel NetAppel
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
PC to Phone VoIP service provider - see also VoIP Buster and VoIP Cheap. All belong to the same company.

More, detailed information on the Betamax group of companies can be found here:

VoIP Stunt VoIP Stunt
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221-55405564
Website
Another service from Finera (Voipbuster / Sipdiscount / VoIp Cheap) in Germany - Free landline calls to selected destinations.

More, detailed information on the Betamax group of companies can be found here:

Voip Buster Voip Buster
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
Free phone calls with the VoipBuster. Call your online friends for free as well as a special selection of popular international destinations.

More, detailed information on the Betamax group of companies can be found here:

Voipraider Voipraider
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 55 40 55 64
Fax: +49 221 3 54 95 64
Website
Another new service from the German Betamax group.  Again offering around 40 "free" destinations for a small fee.

The international call rates are pretty good and listed in US$ and no longer in Euro.
JustVoip JustVoip
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
Just another Betamax VoIP service offering exactly  the same service as all of its 12 peer websites.


SIP Discount SIP Discount
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
Broadband VoIP service provider - Another company in the Betamax group -see also VoIPBuster.com, VoIPCheap.co.uk, NetAppel.fr, Sparvoip.de and VoipStunt.com

More, detailed information on the Betamax group of companies can be found here:

12Voip 12Voip
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 55 40 55 64
Fax: +49 221 3 54 95 64
Website
Yet another VoIP service from the Betamax group. See also Voipbuster.com etc.
VoipWise VoipWise
Im Mediapark 8,
50670, Cologne,
Germany
Map
Telephone: +49 221 3549565
Fax: +49 221 3549566
Website
Another VoIP service from the Betamax group offering exactly the same features as their peer companies such as Voipbuster,Voipcheap and Voipstunt etc.
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