A2Z Trading A.G. Switzerland
- International VoIP Wholesale Provider
- H.323 VoIP Gateway
- Clarent
- Custom Open Source Billing Solution
In telecommunications the automatic call-back is a computer telephone function which allows the user by the engaged addressee’s line or in the other case of the subscriber’s inaccessibility indicating the system to save the number of the called subscriber and make the call when the line will be available or when the called number is not engaged.
XtremeNetworks
Xtreme Networks, Inc. currently manufactues Voice Over IP carrier based solutions switches and IP PBX switches in the USA for North and South America and Spain for Europe. Xtreme Networks, Inc. provides cost effective solutions to the Voice Over IP market
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