IPMA Technologies Hong Kong
- Internet VoIP and Video Conferencing Service Provider
- Voice and Video Conferencing
- Cisco Systems
- Telco Solutions Billing 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.
DOW Networks Costa Rica
DOW Networks is a next-generation telecommunications service and solutions provider focused on meeting the international inbound and outbound calling needs of call centers, hotels, distributed businesses and SMBs in various markets worldwide.
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