A2Z Trading A.G. Switzerland
- International VoIP Wholesale Provider
- H.323 VoIP Gateway
- Clarent
- Custom Open Source Billing Solution
This is a device allowing a user to make VoIP calls using session initiation protocol (SIP). SIP is a telecommunication technology developed as a fast, easy standard for delivering IP-based data, voice, and video communications.
Airdialog Communications Limited
Welcome to Airdialog Communications Ltd
Be a proud user of Airdialog Communications Ltd calling service. Among a lot of different types of calling services choose the one that meets your requirements and enjoy low rate fine quality calling service. Joi
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