- ad IP Telephony & Telecommunications | VoIP 4 Business
- voip4business.be
- Professional telecommunication solution & unified communications for your business. Save up to 80% on business call costs. VoIP & IP telephony.
- Radavision
- www.radvision.com
- SIP, 3G-324M, H.323 stacks and testing tools for VoIP vendors.
3.7
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<10
- Phone Systems London
- www.phone-systems-london.net
- Reviews suppliers of IP telephony in London.
3.5
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<10
- IP xStream
- www.iptelephony.org
- IP Telephony data source. Includes VoIP vendor directory.
3.4
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- IP Telephony
- www.telephony-voip.net
- Resource blog for VoIP technology from a former IT tech.
3.3
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<10
- Voice Systems Research, Inc.
- www.vsrusa.com
- Provides unified messaging, voice mail, advanced call routing, and IP-based telephony solutions.
3.2
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- VOIP Telephone Systems
- www.voiptelephonesystem.org
- Resource, technical information and services for VOIP telephone systems and installation.
3.2
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- TheVoipGuide.org
- www.thevoipguide.org
- Online VoIP technology guide. Includes forum and speed test.
3.2
(si*)
<5
- VoIP Ez
- voipez.com
- Offers in depth information on implementing VoIP in both consumer and commercial settings.
3.1
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- ..CTI(27)
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- ..Telephony(151)
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