Here is a great introduction to a practical application of electromagnetic theory—the field telephone. It’s a training film from 1961 that covers the sound-powered, local battery, and common battery ...

The basic concept is a virtual telephony solution offering advanced features typically associated with a PBX, delivered as a service. 2) Cloud Applications Using the cloud to solve for specific ...

and would launch them in Tamil Nadu, Karnataka, Delhi and Gujarat this year. provider to launch its services in Karnataka. Tata Teleservices will invest Rs 1000 crore in the next six years in the ...

Today, we’d like to get back to a few basics about the relationship between the public-switched telephone network and voice over IP. The PSTN includes a signaling system, a series of central offices ...

As a Linux Journal reader, you've probably stumbled across Google Android here and there. You've probably read an introductory article or maybe you even downloaded an ...

In June, 2023, the Nigerian Communications Commission (NCC) issued Nigeria’s first Mobile Virtual Network Operators (MVNO) licence to 25 ICT companies. The plan of NCC was to use the MVNOs to bridge ...

CHENNAI: Chennai is on the threshold of a major telecom battle as Bharti is all set to unleash its basic telephony services. chennai: chennai is on the threshold of a major telecom battle as bharti is ...