A2ZGlobalcall United States
General office
A2ZGlobalcall
1075 Brittany Road
Lake Zurich
IL ,60047
United States
Phone: +1 312 925 7229
Site: http://www.a2zglobalcall.com
A2ZGlobalcall
1075 Brittany Road
Lake Zurich
IL ,60047
United States
Phone: +1 312 925 7229
Site: http://www.a2zglobalcall.com
- International VoIP Wholesale Provider
- Internet Telephony Service Provider
- Hardware
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- IP devices
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- Cisco Systems
- Java Based own system
Some telephones, depending on the brand and model, have the intercom function, which allows to begin communication by sending the signal. When the signal comes, the telephone set rings a signal different from the standard ring tone call. After that the telephone temporarily switches off from the telephone line and works as an intercom.
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