ISBN-13: 9781138412453 / Angielski / Twarda / 2017 / 323 str.
ISBN-13: 9781138412453 / Angielski / Twarda / 2017 / 323 str.
Whether you're an IT professional, a telecom professional, an office administrator, or just starting out in the business world, this book provides you with an organized, easy-to-use introduction to business telecommunications systems and services. It does